55644464 has 20 divisors (see below), whose sum is σ = 113486040. Its totient is φ = 26357760.

The previous prime is 55644461. The next prime is 55644467. The reversal of 55644464 is 46444655.

It is an interprime number because it is at equal distance from previous prime (55644461) and next prime (55644467).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (55644461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91217 + ... + 91824.

It is an arithmetic number, because the mean of its divisors is an integer number (5674302).

Almost surely, 2^55644464 is an apocalyptic number.

It is an amenable number.

55644464 is an abundant number, since it is smaller than the sum of its proper divisors (57841576).

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

55644464 is a wasteful number, since it uses less digits than its factorization.

55644464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183068 (or 183062 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

The square root of 55644464 is about 7459.5217004846. The cubic root of 55644464 is about 381.7748552225.

The spelling of 55644464 in words is "fifty-five million, six hundred forty-four thousand, four hundred sixty-four".