522570492 has 18 divisors (see below), whose sum is σ = 1320942168. Its totient is φ = 174190152.

The previous prime is 522570473. The next prime is 522570539. The reversal of 522570492 is 294075225.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 14515847 = 522570492 / (5 + 2 + 2 + 5 + 7 + 0 + 4 + 9 + 2).

It is a congruent number.

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, 7257888 + ... + 7257959.

It is an arithmetic number, because the mean of its divisors is an integer number (73385676).

Almost surely, 2^522570492 is an apocalyptic number.

It is an amenable number.

522570492 is an abundant number, since it is smaller than the sum of its proper divisors (798371676).

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

522570492 is a wasteful number, since it uses less digits than its factorization.

522570492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14515857 (or 14515852 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 522570492 is about 22859.8007865336. The cubic root of 522570492 is about 805.4680055769.

It can be divided in two parts, 5225704 and 92, that added together give a square (5225796 = 2286²).

The spelling of 522570492 in words is "five hundred twenty-two million, five hundred seventy thousand, four hundred ninety-two".