520553232 has 30 divisors (see below), whose sum is σ = 1456826462. Its totient is φ = 173517696.

The previous prime is 520553213. The next prime is 520553249. The reversal of 520553232 is 232355025.

It can be written as a sum of positive squares in only one way, i.e., 356303376 + 164249856 = 18876^2 + 12816^2 .

It is a junction number, because it is equal to n+sod(n) for n = 520553196 and 520553205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1807333 + ... + 1807620.

Almost surely, 2^520553232 is an apocalyptic number.

It is an amenable number.

520553232 is an abundant number, since it is smaller than the sum of its proper divisors (936273230).

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

520553232 is a wasteful number, since it uses less digits than its factorization.

520553232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614967 (or 3614958 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 520553232 is about 22815.6356913411. The cubic root of 520553232 is about 804.4302293805.

The spelling of 520553232 in words is "five hundred twenty million, five hundred fifty-three thousand, two hundred thirty-two".