64255957 has 4 divisors (see below), whose sum is σ = 64350720. Its totient is φ = 64161196.

The previous prime is 64255949. The next prime is 64255969. The reversal of 64255957 is 75955246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64255957 - 2³ = 64255949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64255907) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 46357 + ... + 47722.

It is an arithmetic number, because the mean of its divisors is an integer number (16087680).

Almost surely, 2^64255957 is an apocalyptic number.

It is an amenable number.

64255957 is a deficient number, since it is larger than the sum of its proper divisors (94763).

64255957 is an equidigital number, since it uses as much as digits as its factorization.

64255957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94762.

The product of its digits is 378000, while the sum is 43.

The square root of 64255957 is about 8015.9813497787. The cubic root of 64255957 is about 400.5325344530.

The spelling of 64255957 in words is "sixty-four million, two hundred fifty-five thousand, nine hundred fifty-seven".