55106904 has 32 divisors (see below), whose sum is σ = 138492720. Its totient is φ = 18272256.

The previous prime is 55106903. The next prime is 55106923. The reversal of 55106904 is 40960155.

55106904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55106903) 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 7 ways as a sum of consecutive naturals, for example, 1317 + ... + 10580.

Almost surely, 2^55106904 is an apocalyptic number.

It is an amenable number.

55106904 is an abundant number, since it is smaller than the sum of its proper divisors (83385816).

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

55106904 is a wasteful number, since it uses less digits than its factorization.

55106904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12099 (or 12095 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 55106904 is about 7423.4024544005. The cubic root of 55106904 is about 380.5414810509.

The spelling of 55106904 in words is "fifty-five million, one hundred six thousand, nine hundred four".