55139110 has 16 divisors (see below), whose sum is σ = 106885296. Its totient is φ = 20359008.

The previous prime is 55139087. The next prime is 55139221. The reversal of 55139110 is 1193155.

55139110 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 an unprimeable number.

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, 211944 + ... + 212203.

It is an arithmetic number, because the mean of its divisors is an integer number (6680331).

Almost surely, 2^55139110 is an apocalyptic number.

55139110 is a deficient number, since it is larger than the sum of its proper divisors (51746186).

55139110 is a wasteful number, since it uses less digits than its factorization.

55139110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424167.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 55139110 is about 7425.5713584882. The cubic root of 55139110 is about 380.6155996053.

The spelling of 55139110 in words is "fifty-five million, one hundred thirty-nine thousand, one hundred ten".