64514565 has 48 divisors (see below), whose sum is σ = 116812800. Its totient is φ = 32901120.

The previous prime is 64514561. The next prime is 64514579. The reversal of 64514565 is 56541546.

64514565 is a `hidden beast` number, since 645 + 1 + 4 + 5 + 6 + 5 = 666.

It is not a de Polignac number, because 64514565 - 2² = 64514561 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64514561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143461 + ... + 143909.

It is an arithmetic number, because the mean of its divisors is an integer number (2433600).

Almost surely, 2^64514565 is an apocalyptic number.

It is an amenable number.

64514565 is a deficient number, since it is larger than the sum of its proper divisors (52298235).

64514565 is a wasteful number, since it uses less digits than its factorization.

64514565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 591 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 64514565 is about 8032.0959282120. The cubic root of 64514565 is about 401.0691501654.

The spelling of 64514565 in words is "sixty-four million, five hundred fourteen thousand, five hundred sixty-five".