64745265 has 32 divisors (see below), whose sum is σ = 118129536. Its totient is φ = 29998080.

The previous prime is 64745209. The next prime is 64745279. The reversal of 64745265 is 56254746.

It is not a de Polignac number, because 64745265 - 2⁶ = 64745201 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6451 + ... + 13080.

It is an arithmetic number, because the mean of its divisors is an integer number (3691548).

Almost surely, 2^64745265 is an apocalyptic number.

64745265 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64745265 is a deficient number, since it is larger than the sum of its proper divisors (53384271).

64745265 is a wasteful number, since it uses less digits than its factorization.

64745265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19569.

The product of its digits is 201600, while the sum is 39.

The square root of 64745265 is about 8046.4442457523. Note that the first 3 decimals coincide. The cubic root of 64745265 is about 401.5466474133.

The spelling of 64745265 in words is "sixty-four million, seven hundred forty-five thousand, two hundred sixty-five".