520802725 has 12 divisors (see below), whose sum is σ = 655436224. Its totient is φ = 410422320.

The previous prime is 520802717. The next prime is 520802753. The reversal of 520802725 is 527208025.

It is not a de Polignac number, because 520802725 - 2³ = 520802717 is a prime.

It is a Duffinian number.

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, 153789 + ... + 157138.

Almost surely, 2^520802725 is an apocalyptic number.

It is an amenable number.

520802725 is a deficient number, since it is larger than the sum of its proper divisors (134633499).

520802725 is a wasteful number, since it uses less digits than its factorization.

520802725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311004 (or 310999 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 520802725 is about 22821.1026245447. The cubic root of 520802725 is about 804.5587257848.

The spelling of 520802725 in words is "five hundred twenty million, eight hundred two thousand, seven hundred twenty-five".