522564040 has 16 divisors (see below), whose sum is σ = 1175769180. Its totient is φ = 209025600.

The previous prime is 522564023. The next prime is 522564043. The reversal of 522564040 is 40465225.

It can be written as a sum of positive squares in 2 ways, for example, as 486731844 + 35832196 = 22062^2 + 5986^2 .

It is a super-2 number, since 2×522564040² = 546146351802243200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (522564043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6532011 + ... + 6532090.

Almost surely, 2^522564040 is an apocalyptic number.

It is an amenable number.

522564040 is an abundant number, since it is smaller than the sum of its proper divisors (653205140).

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

522564040 is a wasteful number, since it uses less digits than its factorization.

522564040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13064112 (or 13064108 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 522564040 is about 22859.6596650081. The cubic root of 522564040 is about 805.4646906168.

The spelling of 522564040 in words is "five hundred twenty-two million, five hundred sixty-four thousand, forty".