64616275 has 12 divisors (see below), whose sum is σ = 81637632. Its totient is φ = 50716640.

The previous prime is 64616273. The next prime is 64616291. The reversal of 64616275 is 57261646.

It is a happy number.

It is not a de Polignac number, because 64616275 - 2¹ = 64616273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64616273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23059 + ... + 25708.

It is an arithmetic number, because the mean of its divisors is an integer number (6803136).

Almost surely, 2^64616275 is an apocalyptic number.

64616275 is a deficient number, since it is larger than the sum of its proper divisors (17021357).

64616275 is a wasteful number, since it uses less digits than its factorization.

64616275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48830 (or 48825 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 64616275 is about 8038.4249079033. The cubic root of 64616275 is about 401.2798071173.

The spelling of 64616275 in words is "sixty-four million, six hundred sixteen thousand, two hundred seventy-five".