64811425 has 24 divisors (see below), whose sum is σ = 92404800. Its totient is φ = 44172480.

The previous prime is 64811399. The next prime is 64811431. The reversal of 64811425 is 52411846.

It is not a de Polignac number, because 64811425 - 2⁹ = 64810913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30291 + ... + 32359.

It is an arithmetic number, because the mean of its divisors is an integer number (3850200).

Almost surely, 2^64811425 is an apocalyptic number.

It is an amenable number.

64811425 is a deficient number, since it is larger than the sum of its proper divisors (27593375).

64811425 is a wasteful number, since it uses less digits than its factorization.

64811425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265 (or 2260 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 64811425 is about 8050.5543287404. The cubic root of 64811425 is about 401.6833744382.

The spelling of 64811425 in words is "sixty-four million, eight hundred eleven thousand, four hundred twenty-five".