520642552 has 16 divisors (see below), whose sum is σ = 979733160. Its totient is φ = 259380384.

The previous prime is 520642543. The next prime is 520642583. The reversal of 520642552 is 255246025.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115258 + ... + 119689.

Almost surely, 2^520642552 is an apocalyptic number.

It is an amenable number.

520642552 is a deficient number, since it is larger than the sum of its proper divisors (459090608).

520642552 is a wasteful number, since it uses less digits than its factorization.

520642552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235230 (or 235226 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 520642552 is about 22817.5930369529. The cubic root of 520642552 is about 804.4762365862.

Adding to 520642552 its reverse (255246025), we get a palindrome (775888577).

The spelling of 520642552 in words is "five hundred twenty million, six hundred forty-two thousand, five hundred fifty-two".