55136120 has 32 divisors (see below), whose sum is σ = 133600320. Its totient is φ = 20357760.

The previous prime is 55136093. The next prime is 55136143. The reversal of 55136120 is 2163155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52496 + ... + 53535.

It is an arithmetic number, because the mean of its divisors is an integer number (4175010).

Almost surely, 2^55136120 is an apocalyptic number.

It is an amenable number.

55136120 is an abundant number, since it is smaller than the sum of its proper divisors (78464200).

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

55136120 is a wasteful number, since it uses less digits than its factorization.

55136120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106055 (or 106051 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 55136120 is about 7425.3700244500. The cubic root of 55136120 is about 380.6087196659.

Adding to 55136120 its reverse (2163155), we get a palindrome (57299275).

The spelling of 55136120 in words is "fifty-five million, one hundred thirty-six thousand, one hundred twenty".