522691872 has 48 divisors (see below), whose sum is σ = 1386235872. Its totient is φ = 172431360.

The previous prime is 522691849. The next prime is 522691907. The reversal of 522691872 is 278196225.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18754 + ... + 37377.

It is an arithmetic number, because the mean of its divisors is an integer number (28879914).

Almost surely, 2^522691872 is an apocalyptic number.

It is an amenable number.

522691872 is an abundant number, since it is smaller than the sum of its proper divisors (863544000).

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

522691872 is a wasteful number, since it uses less digits than its factorization.

522691872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56241 (or 56233 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 522691872 is about 22862.4555111650. The cubic root of 522691872 is about 805.5303640780.

The spelling of 522691872 in words is "five hundred twenty-two million, six hundred ninety-one thousand, eight hundred seventy-two".