64379251 has 2 divisors, whose sum is σ = 64379252. Its totient is φ = 64379250.

The previous prime is 64379209. The next prime is 64379261. The reversal of 64379251 is 15297346.

64379251 is nontrivially palindromic in base 8.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64379251 - 2⁷ = 64379123 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64379251.

It is not a weakly prime, because it can be changed into another prime (64379261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32189625 + 32189626.

It is an arithmetic number, because the mean of its divisors is an integer number (32189626).

Almost surely, 2^64379251 is an apocalyptic number.

64379251 is a deficient number, since it is larger than the sum of its proper divisors (1).

64379251 is an equidigital number, since it uses as much as digits as its factorization.

64379251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 64379251 is about 8023.6681760900. The cubic root of 64379251 is about 400.7885506980.

The spelling of 64379251 in words is "sixty-four million, three hundred seventy-nine thousand, two hundred fifty-one".