51055051520025 has 216 divisors, whose sum is σ = 111169942001664. Its totient is φ = 22770176198400.

The previous prime is 51055051520009. The next prime is 51055051520051. The reversal of 51055051520025 is 52002515055015.

51055051520025 is a `hidden beast` number, since 5 + 1 + 0 + 550 + 51 + 52 + 0 + 0 + 2 + 5 = 666.

It is not a de Polignac number, because 51055051520025 - 2⁴ = 51055051520009 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 46532904 + ... + 47617446.

Almost surely, 2^{51055051520025} is an apocalyptic number.

It is an amenable number.

51055051520025 is an abundant number, since it is smaller than the sum of its proper divisors (60114890481639).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51055051520025 is an equidigital number, since it uses as much as digits as its factorization.

51055051520025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084625 (or 1084599 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 36.

The spelling of 51055051520025 in words is "fifty-one trillion, fifty-five billion, fifty-one million, five hundred twenty thousand, twenty-five".