51055657525 has 12 divisors (see below), whose sum is σ = 63313082500. Its totient is φ = 40841902080.

The previous prime is 51055657469. The next prime is 51055657561. The reversal of 51055657525 is 52575655015.

51055657525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 487791396 + 50567866129 = 22086^2 + 224873^2 .

It is not a de Polignac number, because 51055657525 - 2¹¹ = 51055655477 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394651 + ... + 507799.

Almost surely, 2^51055657525 is an apocalyptic number.

It is an amenable number.

51055657525 is a deficient number, since it is larger than the sum of its proper divisors (12257424975).

51055657525 is a wasteful number, since it uses less digits than its factorization.

51055657525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131208 (or 131203 counting only the distinct ones).

The product of its (nonzero) digits is 1312500, while the sum is 46.

The spelling of 51055657525 in words is "fifty-one billion, fifty-five million, six hundred fifty-seven thousand, five hundred twenty-five".