55158944 has 24 divisors (see below), whose sum is σ = 108789408. Its totient is φ = 27529920.

The previous prime is 55158913. The next prime is 55158947. The reversal of 55158944 is 44985155.

It is not an unprimeable number, because it can be changed into a prime (55158947) 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, 22079 + ... + 24449.

It is an arithmetic number, because the mean of its divisors is an integer number (4532892).

Almost surely, 2^55158944 is an apocalyptic number.

It is an amenable number.

55158944 is a deficient number, since it is larger than the sum of its proper divisors (53630464).

55158944 is a wasteful number, since it uses less digits than its factorization.

55158944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108 (or 3100 counting only the distinct ones).

The product of its digits is 144000, while the sum is 41.

The square root of 55158944 is about 7426.9067585368. The cubic root of 55158944 is about 380.6612310082.

It can be divided in two parts, 551 and 58944, that added together give a palindrome (59495).

The spelling of 55158944 in words is "fifty-five million, one hundred fifty-eight thousand, nine hundred forty-four".