55032232 has 16 divisors (see below), whose sum is σ = 105133140. Its totient is φ = 26996736.

The previous prime is 55032221. The next prime is 55032233. The reversal of 55032232 is 23223055.

It can be written as a sum of positive squares in 2 ways, for example, as 50041476 + 4990756 = 7074^2 + 2234^2 .

It is not an unprimeable number, because it can be changed into a prime (55032233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64473 + ... + 65320.

Almost surely, 2^55032232 is an apocalyptic number.

It is an amenable number.

55032232 is a deficient number, since it is larger than the sum of its proper divisors (50100908).

55032232 is a wasteful number, since it uses less digits than its factorization.

55032232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129852 (or 129848 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 55032232 is about 7418.3712498095. The cubic root of 55032232 is about 380.3695205166.

Adding to 55032232 its reverse (23223055), we get a palindrome (78255287).

The spelling of 55032232 in words is "fifty-five million, thirty-two thousand, two hundred thirty-two".