64957005 has 32 divisors (see below), whose sum is σ = 116392320. Its totient is φ = 34369920.

The previous prime is 64957003. The next prime is 64957019. The reversal of 64957005 is 50075946.

64957005 is a `hidden beast` number, since 649 + 5 + 7 + 0 + 0 + 5 = 666.

It is not a de Polignac number, because 64957005 - 2¹ = 64957003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64957003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15849 + ... + 19521.

It is an arithmetic number, because the mean of its divisors is an integer number (3637260).

Almost surely, 2^64957005 is an apocalyptic number.

It is an amenable number.

64957005 is a deficient number, since it is larger than the sum of its proper divisors (51435315).

64957005 is a wasteful number, since it uses less digits than its factorization.

64957005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818 (or 3812 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 64957005 is about 8059.5908705095. The cubic root of 64957005 is about 401.9839044569.

The spelling of 64957005 in words is "sixty-four million, nine hundred fifty-seven thousand, five".