55144716 has 24 divisors (see below), whose sum is σ = 140368704. Its totient is φ = 16710480.

The previous prime is 55144679. The next prime is 55144721. The reversal of 55144716 is 61744155.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208750 + ... + 209013.

It is an arithmetic number, because the mean of its divisors is an integer number (5848696).

Almost surely, 2^55144716 is an apocalyptic number.

It is an amenable number.

55144716 is an abundant number, since it is smaller than the sum of its proper divisors (85223988).

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

55144716 is a wasteful number, since it uses less digits than its factorization.

55144716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417781 (or 417779 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 55144716 is about 7425.9488282643. The cubic root of 55144716 is about 380.6284982463.

The spelling of 55144716 in words is "fifty-five million, one hundred forty-four thousand, seven hundred sixteen".