64560522 has 16 divisors (see below), whose sum is σ = 139053600. Its totient is φ = 19864752.

The previous prime is 64560521. The next prime is 64560533. The reversal of 64560522 is 22506546.

It is a super-2 number, since 2×64560522² = 8336122001824968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64560522.

It is not an unprimeable number, because it can be changed into a prime (64560521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413772 + ... + 413927.

It is an arithmetic number, because the mean of its divisors is an integer number (8690850).

Almost surely, 2^64560522 is an apocalyptic number.

64560522 is an abundant number, since it is smaller than the sum of its proper divisors (74493078).

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

64560522 is a wasteful number, since it uses less digits than its factorization.

64560522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827717.

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

The square root of 64560522 is about 8034.9562537701. The cubic root of 64560522 is about 401.1643615335.

The spelling of 64560522 in words is "sixty-four million, five hundred sixty thousand, five hundred twenty-two".