520525909525025 has 48 divisors (see below), whose sum is σ = 666536942762496. Its totient is φ = 402828292800000.

The previous prime is 520525909525001. The next prime is 520525909525091.

520525909525025 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 520525909525025 - 2²⁸ = 520525641089569 is a prime.

It is a super-2 number, since 2×520525909525025² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40536237605 + ... + 40536250445.

It is an arithmetic number, because the mean of its divisors is an integer number (13886186307552).

Almost surely, 2^{520525909525025} is an apocalyptic number.

It is an amenable number.

520525909525025 is a deficient number, since it is larger than the sum of its proper divisors (146011033237471).

520525909525025 is a wasteful number, since it uses less digits than its factorization.

520525909525025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29514 (or 29509 counting only the distinct ones).

The product of its (nonzero) digits is 20250000, while the sum is 56.

The spelling of 520525909525025 in words is "five hundred twenty trillion, five hundred twenty-five billion, nine hundred nine million, five hundred twenty-five thousand, twenty-five".