55188154 has 32 divisors (see below), whose sum is σ = 100590336. Its totient is φ = 22168320.

The previous prime is 55188151. The next prime is 55188193. The reversal of 55188154 is 45188155.

55188154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55188151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109467 + ... + 109969.

It is an arithmetic number, because the mean of its divisors is an integer number (3143448).

Almost surely, 2^55188154 is an apocalyptic number.

55188154 is a deficient number, since it is larger than the sum of its proper divisors (45402182).

55188154 is a wasteful number, since it uses less digits than its factorization.

55188154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990.

The product of its digits is 32000, while the sum is 37.

The square root of 55188154 is about 7428.8729966261. The cubic root of 55188154 is about 380.7284135391.

Subtracting from 55188154 its reverse (45188155), we obtain a palindrome (9999999).

The spelling of 55188154 in words is "fifty-five million, one hundred eighty-eight thousand, one hundred fifty-four".