520326025 has 6 divisors (see below), whose sum is σ = 645204302. Its totient is φ = 416260800.

The previous prime is 520326017. The next prime is 520326073. The reversal of 520326025 is 520623025.

It can be written as a sum of positive squares in 3 ways, for example, as 6533136 + 513792889 = 2556^2 + 22667^2 .

It is not a de Polignac number, because 520326025 - 2³ = 520326017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 20813041 = 520326025 / (5 + 2 + 0 + 3 + 2 + 6 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10406496 + ... + 10406545.

Almost surely, 2^520326025 is an apocalyptic number.

It is an amenable number.

520326025 is a deficient number, since it is larger than the sum of its proper divisors (124878277).

520326025 is a wasteful number, since it uses less digits than its factorization.

520326025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20813051 (or 20813046 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 520326025 is about 22810.6559528655. The cubic root of 520326025 is about 804.3131752120.

The spelling of 520326025 in words is "five hundred twenty million, three hundred twenty-six thousand, twenty-five".