55164644 has 12 divisors (see below), whose sum is σ = 96646704. Its totient is φ = 27551304.

The previous prime is 55164631. The next prime is 55164653. The reversal of 55164644 is 44646155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3494 + ... + 11069.

It is an arithmetic number, because the mean of its divisors is an integer number (8053892).

Almost surely, 2^55164644 is an apocalyptic number.

It is an amenable number.

55164644 is a deficient number, since it is larger than the sum of its proper divisors (41482060).

55164644 is a wasteful number, since it uses less digits than its factorization.

55164644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15514 (or 15512 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 55164644 is about 7427.2904884621. The cubic root of 55164644 is about 380.6743427789.

The spelling of 55164644 in words is "fifty-five million, one hundred sixty-four thousand, six hundred forty-four".