64091056 has 10 divisors (see below), whose sum is σ = 124176452. Its totient is φ = 32045520.

The previous prime is 64091021. The next prime is 64091057. The reversal of 64091056 is 65019046.

It is not an unprimeable number, because it can be changed into a prime (64091057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2002830 + ... + 2002861.

Almost surely, 2^64091056 is an apocalyptic number.

It is an amenable number.

64091056 is a deficient number, since it is larger than the sum of its proper divisors (60085396).

64091056 is a wasteful number, since it uses less digits than its factorization.

64091056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4005699 (or 4005693 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 64091056 is about 8005.6889772211. The cubic root of 64091056 is about 400.1896101058.

The spelling of 64091056 in words is "sixty-four million, ninety-one thousand, fifty-six".