55158884 has 24 divisors (see below), whose sum is σ = 107034816. Its totient is φ = 24660000.

The previous prime is 55158877. The next prime is 55158893. The reversal of 55158884 is 48885155.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 7592 + ... + 12959.

It is an arithmetic number, because the mean of its divisors is an integer number (4459784).

Almost surely, 2^55158884 is an apocalyptic number.

It is an amenable number.

55158884 is a deficient number, since it is larger than the sum of its proper divisors (51875932).

55158884 is a wasteful number, since it uses less digits than its factorization.

55158884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20627 (or 20625 counting only the distinct ones).

The product of its digits is 256000, while the sum is 44.

The square root of 55158884 is about 7426.9027191690. The cubic root of 55158884 is about 380.6610929847.

The spelling of 55158884 in words is "fifty-five million, one hundred fifty-eight thousand, eight hundred eighty-four".