64576651 has 2 divisors, whose sum is σ = 64576652. Its totient is φ = 64576650.

The previous prime is 64576643. The next prime is 64576667. The reversal of 64576651 is 15667546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64576651 - 2³ = 64576643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64576691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32288325 + 32288326.

It is an arithmetic number, because the mean of its divisors is an integer number (32288326).

Almost surely, 2^64576651 is an apocalyptic number.

64576651 is a deficient number, since it is larger than the sum of its proper divisors (1).

64576651 is an equidigital number, since it uses as much as digits as its factorization.

64576651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 40.

The square root of 64576651 is about 8035.9598679934. The cubic root of 64576651 is about 401.1977660612.

The spelling of 64576651 in words is "sixty-four million, five hundred seventy-six thousand, six hundred fifty-one".