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55351205 = 5713239509
BaseRepresentation
bin1101001100100…
…1011110100101
310212011010120122
43103021132211
5103132214310
65254211325
71241322530
oct323113645
9125133518
1055351205
11292761a8
1216653b45
13b60ccc0
1474cba17
154cd5555
hex34c97a5

55351205 has 32 divisors (see below), whose sum is σ = 82252800. Its totient is φ = 34820352.

The previous prime is 55351171. The next prime is 55351229. The reversal of 55351205 is 50215355.

It is a de Polignac number, because none of the positive numbers 2k-55351205 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108491 + ... + 108999.

It is an arithmetic number, because the mean of its divisors is an integer number (2570400).

Almost surely, 255351205 is an apocalyptic number.

It is an amenable number.

55351205 is a deficient number, since it is larger than the sum of its proper divisors (26901595).

55351205 is a wasteful number, since it uses less digits than its factorization.

55351205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 55351205 is about 7439.8390439579. The cubic root of 55351205 is about 381.1029933990.

The spelling of 55351205 in words is "fifty-five million, three hundred fifty-one thousand, two hundred five".

Divisors: 1 5 7 13 35 65 91 239 455 509 1195 1673 2545 3107 3563 6617 8365 15535 17815 21749 33085 46319 108745 121651 231595 608255 851557 1581463 4257785 7907315 11070241 55351205