521425244132055 has 64 divisors (see below), whose sum is σ = 944597293885440. Its totient is φ = 272809171440000.

The previous prime is 521425244132033. The next prime is 521425244132123. The reversal of 521425244132055 is 550231442524125.

521425244132055 is a `hidden beast` number, since 5 + 2 + 1 + 4 + 2 + 5 + 24 + 413 + 205 + 5 = 666.

It is not a de Polignac number, because 521425244132055 - 2³⁰ = 521424170390231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 521425244132055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47482930 + ... + 57423680.

It is an arithmetic number, because the mean of its divisors is an integer number (14759332716960).

Almost surely, 2^{521425244132055} is an apocalyptic number.

521425244132055 is a deficient number, since it is larger than the sum of its proper divisors (423172049753385).

521425244132055 is a wasteful number, since it uses less digits than its factorization.

521425244132055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9948149 (or 9948143 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 45.

The spelling of 521425244132055 in words is "five hundred twenty-one trillion, four hundred twenty-five billion, two hundred forty-four million, one hundred thirty-two thousand, fifty-five".