64501275 has 24 divisors (see below), whose sum is σ = 106880560. Its totient is φ = 34323840.

The previous prime is 64501253. The next prime is 64501277. The reversal of 64501275 is 57210546.

It is not a de Polignac number, because 64501275 - 2¹⁰ = 64500251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64501277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52569 + ... + 53781.

Almost surely, 2^64501275 is an apocalyptic number.

64501275 is a deficient number, since it is larger than the sum of its proper divisors (42379285).

64501275 is a wasteful number, since it uses less digits than its factorization.

64501275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935 (or 1930 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 64501275 is about 8031.2685797450. The cubic root of 64501275 is about 401.0416081932.

The spelling of 64501275 in words is "sixty-four million, five hundred one thousand, two hundred seventy-five".