520653004 has 12 divisors (see below), whose sum is σ = 916234200. Its totient is φ = 258871808.

The previous prime is 520652989. The next prime is 520653013. The reversal of 520653004 is 400356025.

It is a self number, because there is not a number n which added to its sum of digits gives 520653004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362869 + ... + 364300.

It is an arithmetic number, because the mean of its divisors is an integer number (76352850).

Almost surely, 2^520653004 is an apocalyptic number.

It is an amenable number.

520653004 is a deficient number, since it is larger than the sum of its proper divisors (395581196).

520653004 is a wasteful number, since it uses less digits than its factorization.

520653004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727352 (or 727350 counting only the distinct ones).

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

The square root of 520653004 is about 22817.8220696016. The cubic root of 520653004 is about 804.4816198889.

The spelling of 520653004 in words is "five hundred twenty million, six hundred fifty-three thousand, four".