522570540 has 24 divisors (see below), whose sum is σ = 1463197680. Its totient is φ = 139352128.

The previous prime is 522570539. The next prime is 522570551. The reversal of 522570540 is 45075225.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 522570498 and 522570507.

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, 4354695 + ... + 4354814.

It is an arithmetic number, because the mean of its divisors is an integer number (60966570).

Almost surely, 2^522570540 is an apocalyptic number.

It is an amenable number.

522570540 is an abundant number, since it is smaller than the sum of its proper divisors (940627140).

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

522570540 is a wasteful number, since it uses less digits than its factorization.

522570540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8709521 (or 8709519 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 522570540 is about 22859.8018364114. The cubic root of 522570540 is about 805.4680302386.

The spelling of 522570540 in words is "five hundred twenty-two million, five hundred seventy thousand, five hundred forty".