64574568 has 48 divisors (see below), whose sum is σ = 185180580. Its totient is φ = 20258304.

The previous prime is 64574527. The next prime is 64574599. The reversal of 64574568 is 86547546.

64574568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 56520324 + 8054244 = 7518^2 + 2838^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25155 + ... + 27602.

Almost surely, 2^64574568 is an apocalyptic number.

64574568 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

64574568 is an abundant number, since it is smaller than the sum of its proper divisors (120606012).

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

64574568 is a wasteful number, since it uses less digits than its factorization.

64574568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52786 (or 52779 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 64574568 is about 8035.8302620202. The cubic root of 64574568 is about 401.1934523043.

It can be divided in two parts, 6457 and 4568, that added together give a square (11025 = 105²).

The spelling of 64574568 in words is "sixty-four million, five hundred seventy-four thousand, five hundred sixty-eight".