64624506 has 16 divisors (see below), whose sum is σ = 129921024. Its totient is φ = 21429504.

The previous prime is 64624493. The next prime is 64624513. The reversal of 64624506 is 60542646.

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, 26746 + ... + 29061.

It is an arithmetic number, because the mean of its divisors is an integer number (8120064).

Almost surely, 2^64624506 is an apocalyptic number.

64624506 is an abundant number, since it is smaller than the sum of its proper divisors (65296518).

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

64624506 is a wasteful number, since it uses less digits than its factorization.

64624506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56005.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 64624506 is about 8038.9368700096. The cubic root of 64624506 is about 401.2968451048.

It can be divided in two parts, 646 and 24506, that added together give a palindrome (25152).

The spelling of 64624506 in words is "sixty-four million, six hundred twenty-four thousand, five hundred six".