64576506 has 32 divisors (see below), whose sum is σ = 137401920. Its totient is φ = 20162816.

The previous prime is 64576493. The next prime is 64576511. The reversal of 64576506 is 60567546.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21760 + ... + 24548.

It is an arithmetic number, because the mean of its divisors is an integer number (4293810).

Almost surely, 2^64576506 is an apocalyptic number.

64576506 is an abundant number, since it is smaller than the sum of its proper divisors (72825414).

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

64576506 is a wasteful number, since it uses less digits than its factorization.

64576506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3038.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 64576506 is about 8035.9508460418. The cubic root of 64576506 is about 401.1974657787.

The spelling of 64576506 in words is "sixty-four million, five hundred seventy-six thousand, five hundred six".