520064625 has 16 divisors (see below), whose sum is σ = 865388160. Its totient is φ = 277367600.

The previous prime is 520064617. The next prime is 520064641. The reversal of 520064625 is 526460025.

It is not a de Polignac number, because 520064625 - 2³ = 520064617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520064592 and 520064601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693045 + ... + 693794.

It is an arithmetic number, because the mean of its divisors is an integer number (54086760).

Almost surely, 2^520064625 is an apocalyptic number.

It is an amenable number.

520064625 is a deficient number, since it is larger than the sum of its proper divisors (345323535).

520064625 is a wasteful number, since it uses less digits than its factorization.

520064625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386857 (or 1386847 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 520064625 is about 22804.9254548223. The cubic root of 520064625 is about 804.1784630817.

The spelling of 520064625 in words is "five hundred twenty million, sixty-four thousand, six hundred twenty-five".