64613265 has 16 divisors (see below), whose sum is σ = 103564608. Its totient is φ = 34399296.

The previous prime is 64613257. The next prime is 64613267. The reversal of 64613265 is 56231646.

It is not a de Polignac number, because 64613265 - 2³ = 64613257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64613267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5682 + ... + 12708.

It is an arithmetic number, because the mean of its divisors is an integer number (6472788).

Almost surely, 2^64613265 is an apocalyptic number.

It is an amenable number.

64613265 is a deficient number, since it is larger than the sum of its proper divisors (38951343).

64613265 is a wasteful number, since it uses less digits than its factorization.

64613265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7648.

The product of its digits is 25920, while the sum is 33.

The square root of 64613265 is about 8038.2376799893. The cubic root of 64613265 is about 401.2735761227.

The spelling of 64613265 in words is "sixty-four million, six hundred thirteen thousand, two hundred sixty-five".