520008252525 has 36 divisors (see below), whose sum is σ = 953052868768. Its totient is φ = 270888014880.

The previous prime is 520008252523. The next prime is 520008252593. The reversal of 520008252525 is 525252800025.

520008252525 is a `hidden beast` number, since 5 + 2 + 0 + 0 + 0 + 82 + 52 + 525 = 666.

520008252525 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 520008252525 - 2¹ = 520008252523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520008252525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520008252523) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26864137 + ... + 26883486.

Almost surely, 2^520008252525 is an apocalyptic number.

It is an amenable number.

520008252525 is a deficient number, since it is larger than the sum of its proper divisors (433044616243).

520008252525 is a wasteful number, since it uses less digits than its factorization.

520008252525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53747682 (or 53747674 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 520008252525 in words is "five hundred twenty billion, eight million, two hundred fifty-two thousand, five hundred twenty-five".