520531025 has 12 divisors (see below), whose sum is σ = 737667072. Its totient is φ = 356935440.

The previous prime is 520531021. The next prime is 520531027. The reversal of 520531025 is 520135025.

It is not a de Polignac number, because 520531025 - 2² = 520531021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520531021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1487057 + ... + 1487406.

It is an arithmetic number, because the mean of its divisors is an integer number (61472256).

Almost surely, 2^520531025 is an apocalyptic number.

It is an amenable number.

520531025 is a deficient number, since it is larger than the sum of its proper divisors (217136047).

520531025 is a wasteful number, since it uses less digits than its factorization.

520531025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2974480 (or 2974475 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 520531025 is about 22815.1490242777. The cubic root of 520531025 is about 804.4187901174.

The spelling of 520531025 in words is "five hundred twenty million, five hundred thirty-one thousand, twenty-five".