55745964 has 36 divisors (see below), whose sum is σ = 141261120. Its totient is φ = 18536160.

The previous prime is 55745959. The next prime is 55745993. The reversal of 55745964 is 46954755.

55745964 is a `hidden beast` number, since 5 + 57 + 4 + 596 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×55745964² = 6215225004578592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14917 + ... + 18275.

It is an arithmetic number, because the mean of its divisors is an integer number (3923920).

Almost surely, 2^55745964 is an apocalyptic number.

It is an amenable number.

55745964 is an abundant number, since it is smaller than the sum of its proper divisors (85515156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55745964 is a wasteful number, since it uses less digits than its factorization.

55745964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830 (or 3825 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 55745964 is about 7466.3219860919. The cubic root of 55745964 is about 382.0068436225.

The spelling of 55745964 in words is "fifty-five million, seven hundred forty-five thousand, nine hundred sixty-four".