64925945 has 32 divisors (see below), whose sum is σ = 94867200. Its totient is φ = 41665536.

The previous prime is 64925933. The next prime is 64925953. The reversal of 64925945 is 54952946.

It is a cyclic number.

It is not a de Polignac number, because 64925945 - 2⁴ = 64925929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64925896 and 64925905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58637 + ... + 59733.

It is an arithmetic number, because the mean of its divisors is an integer number (2964600).

Almost surely, 2^64925945 is an apocalyptic number.

It is an amenable number.

64925945 is a deficient number, since it is larger than the sum of its proper divisors (29941255).

64925945 is a wasteful number, since it uses less digits than its factorization.

64925945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217.

The product of its digits is 388800, while the sum is 44.

The square root of 64925945 is about 8057.6637432943. The cubic root of 64925945 is about 401.9198230405.

The spelling of 64925945 in words is "sixty-four million, nine hundred twenty-five thousand, nine hundred forty-five".