522681172 has 36 divisors (see below), whose sum is σ = 1011600576. Its totient is φ = 236090400.

The previous prime is 522681157. The next prime is 522681191. The reversal of 522681172 is 271186225.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23547 + ... + 39997.

It is an arithmetic number, because the mean of its divisors is an integer number (28100016).

Almost surely, 2^522681172 is an apocalyptic number.

522681172 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

522681172 is a deficient number, since it is larger than the sum of its proper divisors (488919404).

522681172 is a wasteful number, since it uses less digits than its factorization.

522681172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16528 (or 16513 counting only the distinct ones).

The product of its digits is 13440, while the sum is 34.

The square root of 522681172 is about 22862.2215018576. The cubic root of 522681172 is about 805.5248673828.

The spelling of 522681172 in words is "five hundred twenty-two million, six hundred eighty-one thousand, one hundred seventy-two".