64165425 has 24 divisors (see below), whose sum is σ = 106522944. Its totient is φ = 34080960.

The previous prime is 64165399. The next prime is 64165427. The reversal of 64165425 is 52456146.

64165425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64165425 - 2⁸ = 64165169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64165427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18099 + ... + 21351.

It is an arithmetic number, because the mean of its divisors is an integer number (4438456).

Almost surely, 2^64165425 is an apocalyptic number.

It is an amenable number.

64165425 is a deficient number, since it is larger than the sum of its proper divisors (42357519).

64165425 is a wasteful number, since it uses less digits than its factorization.

64165425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529 (or 3524 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 64165425 is about 8010.3323901072. The cubic root of 64165425 is about 400.3443389084.

It can be divided in two parts, 641 and 65425, that added together give a palindrome (66066).

The spelling of 64165425 in words is "sixty-four million, one hundred sixty-five thousand, four hundred twenty-five".