64901651 has 2 divisors, whose sum is σ = 64901652. Its totient is φ = 64901650.

The previous prime is 64901579. The next prime is 64901659. The reversal of 64901651 is 15610946.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64901651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64901659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32450825 + 32450826.

It is an arithmetic number, because the mean of its divisors is an integer number (32450826).

Almost surely, 2^64901651 is an apocalyptic number.

64901651 is a deficient number, since it is larger than the sum of its proper divisors (1).

64901651 is an equidigital number, since it uses as much as digits as its factorization.

64901651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 64901651 is about 8056.1560933239. The cubic root of 64901651 is about 401.8696866465.

The spelling of 64901651 in words is "sixty-four million, nine hundred one thousand, six hundred fifty-one".