522512364 has 144 divisors (see below), whose sum is σ = 1403918208. Its totient is φ = 151008000.

The previous prime is 522512329. The next prime is 522512371. The reversal of 522512364 is 463215225.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3988579 + ... + 3988709.

It is an arithmetic number, because the mean of its divisors is an integer number (9749432).

Almost surely, 2^522512364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522512364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701959104).

522512364 is an abundant number, since it is smaller than the sum of its proper divisors (881405844).

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

522512364 is a wasteful number, since it uses less digits than its factorization.

522512364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 255 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 522512364 is about 22858.5293490198. The cubic root of 522512364 is about 805.4381391244.

Adding to 522512364 its reverse (463215225), we get a palindrome (985727589).

It can be divided in two parts, 52251 and 2364, that added together give a triangular number (54615 = T₃₃₀).

The spelling of 522512364 in words is "five hundred twenty-two million, five hundred twelve thousand, three hundred sixty-four".