55136232 has 24 divisors (see below), whose sum is σ = 149327490. Its totient is φ = 18378720.

The previous prime is 55136231. The next prime is 55136239. The reversal of 55136232 is 23263155.

It can be written as a sum of positive squares in only one way, i.e., 43480836 + 11655396 = 6594^2 + 3414^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 55136196 and 55136205.

It is not an unprimeable number, because it can be changed into a prime (55136231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 382819 + ... + 382962.

Almost surely, 2^55136232 is an apocalyptic number.

It is an amenable number.

55136232 is an abundant number, since it is smaller than the sum of its proper divisors (94191258).

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

55136232 is a wasteful number, since it uses less digits than its factorization.

55136232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765793 (or 765786 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 55136232 is about 7425.3775661578. The cubic root of 55136232 is about 380.6089773805.

Adding to 55136232 its reverse (23263155), we get a palindrome (78399387).

The spelling of 55136232 in words is "fifty-five million, one hundred thirty-six thousand, two hundred thirty-two".