520525242 has 48 divisors (see below), whose sum is σ = 1140539400. Its totient is φ = 171561600.

The previous prime is 520525231. The next prime is 520525253. The reversal of 520525242 is 242525025.

520525242 is a `hidden beast` number, since 520 + 52 + 52 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (520525231) and next prime (520525253).

It can be written as a sum of positive squares in 4 ways, for example, as 124077321 + 396447921 = 11139^2 + 19911^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1128892 + ... + 1129352.

Almost surely, 2^520525242 is an apocalyptic number.

520525242 is an abundant number, since it is smaller than the sum of its proper divisors (620014158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520525242 is a wasteful number, since it uses less digits than its factorization.

520525242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 520525242 is about 22815.0222879576. The cubic root of 520525242 is about 804.4158111268.

The spelling of 520525242 in words is "five hundred twenty million, five hundred twenty-five thousand, two hundred forty-two".