64677425 has 12 divisors (see below), whose sum is σ = 84421680. Its totient is φ = 49018320.

The previous prime is 64677413. The next prime is 64677427. The reversal of 64677425 is 52477646.

It is not a de Polignac number, because 64677425 - 2⁴ = 64677409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64677427) 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, 67607 + ... + 68556.

It is an arithmetic number, because the mean of its divisors is an integer number (7035140).

Almost surely, 2^64677425 is an apocalyptic number.

It is an amenable number.

64677425 is a deficient number, since it is larger than the sum of its proper divisors (19744255).

64677425 is a wasteful number, since it uses less digits than its factorization.

64677425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136192 (or 136187 counting only the distinct ones).

The product of its digits is 282240, while the sum is 41.

The square root of 64677425 is about 8042.2276142870. The cubic root of 64677425 is about 401.4063517256.

The spelling of 64677425 in words is "sixty-four million, six hundred seventy-seven thousand, four hundred twenty-five".