55113132 has 24 divisors (see below), whose sum is σ = 129802176. Its totient is φ = 18198928.

The previous prime is 55113119. The next prime is 55113181. The reversal of 55113132 is 23131155.

It is a junction number, because it is equal to n+sod(n) for n = 55113099 and 55113108.

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, 20178 + ... + 22745.

It is an arithmetic number, because the mean of its divisors is an integer number (5408424).

Almost surely, 2^55113132 is an apocalyptic number.

It is an amenable number.

55113132 is an abundant number, since it is smaller than the sum of its proper divisors (74689044).

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

55113132 is a wasteful number, since it uses less digits than its factorization.

55113132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43037 (or 43035 counting only the distinct ones).

The product of its digits is 450, while the sum is 21.

The square root of 55113132 is about 7423.8219267437. The cubic root of 55113132 is about 380.5558163574. Note that the first 3 decimals are identical.

Adding to 55113132 its reverse (23131155), we get a palindrome (78244287).

The spelling of 55113132 in words is "fifty-five million, one hundred thirteen thousand, one hundred thirty-two".