64264251 has 8 divisors (see below), whose sum is σ = 90195520. Its totient is φ = 40587912.

The previous prime is 64264223. The next prime is 64264253. The reversal of 64264251 is 15246246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64264251 - 2¹¹ = 64262203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64264253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563665 + ... + 563778.

It is an arithmetic number, because the mean of its divisors is an integer number (11274440).

Almost surely, 2^64264251 is an apocalyptic number.

64264251 is a deficient number, since it is larger than the sum of its proper divisors (25931269).

64264251 is a wasteful number, since it uses less digits than its factorization.

64264251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127465.

The product of its digits is 11520, while the sum is 30.

The square root of 64264251 is about 8016.4986746085. The cubic root of 64264251 is about 400.5497669612.

The spelling of 64264251 in words is "sixty-four million, two hundred sixty-four thousand, two hundred fifty-one".