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5500505725 = 5211213612293
BaseRepresentation
bin1010001111101101…
…10000111001111101
3112012100011122100021
411013312300321331
542231112140400
62305450532141
7253210345561
oct50766607175
915170148307
105500505725
11237298a400
121096137051
1369875cc20
143a27496a1
15222d6e71a
hex147db0e7d

5500505725 has 72 divisors (see below), whose sum is σ = 8209684616. Its totient is φ = 3630528000.

The previous prime is 5500505723. The next prime is 5500505743. The reversal of 5500505725 is 5275050055.

It can be written as a sum of positive squares in 12 ways, for example, as 4542355609 + 958150116 = 67397^2 + 30954^2 .

It is not a de Polignac number, because 5500505725 - 21 = 5500505723 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500505723) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2397679 + ... + 2399971.

Almost surely, 25500505725 is an apocalyptic number.

5500505725 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5500505725 is a deficient number, since it is larger than the sum of its proper divisors (2709178891).

5500505725 is a wasteful number, since it uses less digits than its factorization.

5500505725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399 (or 2383 counting only the distinct ones).

The product of its (nonzero) digits is 43750, while the sum is 34.

The square root of 5500505725 is about 74165.3943898366. The cubic root of 5500505725 is about 1765.2282685931.

It can be divided in two parts, 5500 and 505725, that added together give a square (511225 = 7152).

The spelling of 5500505725 in words is "five billion, five hundred million, five hundred five thousand, seven hundred twenty-five".

Divisors: 1 5 11 13 25 55 61 65 121 143 275 305 325 605 671 715 793 1525 1573 2293 3025 3355 3575 3965 7381 7865 8723 11465 16775 19825 25223 29809 36905 39325 43615 57325 95953 126115 139873 149045 184525 218075 277453 327899 479765 630575 699365 745225 1387265 1538603 1639495 1818349 2398825 3496825 3606889 6936325 7693015 8197475 9091745 16924633 18034445 20001839 38465075 45458725 84623165 90172225 100009195 220020229 423115825 500045975 1100101145 5500505725