64935425 has 12 divisors (see below), whose sum is σ = 81320316. Its totient is φ = 51432000.

The previous prime is 64935391. The next prime is 64935433. The reversal of 64935425 is 52453946.

It can be written as a sum of positive squares in 6 ways, for example, as 2572816 + 62362609 = 1604^2 + 7897^2 .

It is not a de Polignac number, because 64935425 - 2⁶ = 64935361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10334 + ... + 15383.

It is an arithmetic number, because the mean of its divisors is an integer number (6776693).

Almost surely, 2^64935425 is an apocalyptic number.

It is an amenable number.

64935425 is a deficient number, since it is larger than the sum of its proper divisors (16384891).

64935425 is a wasteful number, since it uses less digits than its factorization.

64935425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25828 (or 25823 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 64935425 is about 8058.2519816645. The cubic root of 64935425 is about 401.9393838622.

The spelling of 64935425 in words is "sixty-four million, nine hundred thirty-five thousand, four hundred twenty-five".