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55150525 = 522206021
BaseRepresentation
bin1101001001100…
…0011110111101
310211202221022001
43102120132331
5103104304100
65250022301
71236525463
oct322303675
9124687261
1055150525
1129149451
1216577991
13b56c861
147478833
154c95d6a
hex34987bd

55150525 has 6 divisors (see below), whose sum is σ = 68386682. Its totient is φ = 44120400.

The previous prime is 55150523. The next prime is 55150531. The reversal of 55150525 is 52505155.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 597529 + 54552996 = 773^2 + 7386^2 .

It is not a de Polignac number, because 55150525 - 21 = 55150523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55150493 and 55150502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55150523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1102986 + ... + 1103035.

Almost surely, 255150525 is an apocalyptic number.

It is an amenable number.

55150525 is a deficient number, since it is larger than the sum of its proper divisors (13236157).

55150525 is a wasteful number, since it uses less digits than its factorization.

55150525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206031 (or 2206026 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 55150525 is about 7426.3399464339. The cubic root of 55150525 is about 380.6418630403.

It can be divided in two parts, 551 and 50525, that added together give a square (51076 = 2262).

The spelling of 55150525 in words is "fifty-five million, one hundred fifty thousand, five hundred twenty-five".

Divisors: 1 5 25 2206021 11030105 55150525