55044860 has 24 divisors (see below), whose sum is σ = 124486656. Its totient is φ = 20324160.

The previous prime is 55044851. The next prime is 55044877. The reversal of 55044860 is 6844055.

It is a super-2 number, since 2×55044860² = 6059873224839200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105596 + ... + 106115.

It is an arithmetic number, because the mean of its divisors is an integer number (5186944).

Almost surely, 2^55044860 is an apocalyptic number.

It is an amenable number.

55044860 is an abundant number, since it is smaller than the sum of its proper divisors (69441796).

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

55044860 is a wasteful number, since it uses less digits than its factorization.

55044860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211733 (or 211731 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 55044860 is about 7419.2223312150. Note that the first 3 decimals coincide. The cubic root of 55044860 is about 380.3986121887.

The spelling of 55044860 in words is "fifty-five million, forty-four thousand, eight hundred sixty".