64261875 has 20 divisors (see below), whose sum is σ = 107071976. Its totient is φ = 34272000.

The previous prime is 64261867. The next prime is 64261877. The reversal of 64261875 is 57816246.

It is not a de Polignac number, because 64261875 - 2³ = 64261867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64261877) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15262 + ... + 19011.

Almost surely, 2^64261875 is an apocalyptic number.

64261875 is a deficient number, since it is larger than the sum of its proper divisors (42810101).

64261875 is an equidigital number, since it uses as much as digits as its factorization.

64261875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34296 (or 34281 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 64261875 is about 8016.3504788651. The cubic root of 64261875 is about 400.5448304791.

The spelling of 64261875 in words is "sixty-four million, two hundred sixty-one thousand, eight hundred seventy-five".