521272512 has 42 divisors (see below), whose sum is σ = 1494135188. Its totient is φ = 173757312.

The previous prime is 521272501. The next prime is 521272537. The reversal of 521272512 is 215272125.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451918 + ... + 453069.

Almost surely, 2^521272512 is an apocalyptic number.

It is an amenable number.

521272512 is an abundant number, since it is smaller than the sum of its proper divisors (972862676).

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

521272512 is a wasteful number, since it uses less digits than its factorization.

521272512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905005 (or 904992 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 521272512 is about 22831.3931243803. The cubic root of 521272512 is about 804.8005688858.

The spelling of 521272512 in words is "five hundred twenty-one million, two hundred seventy-two thousand, five hundred twelve".