55232632 has 32 divisors (see below), whose sum is σ = 127461600. Its totient is φ = 21849984.

The previous prime is 55232581. The next prime is 55232663. The reversal of 55232632 is 23623255.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 55232632.

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, 37207 + ... + 38662.

It is an arithmetic number, because the mean of its divisors is an integer number (3983175).

Almost surely, 2^55232632 is an apocalyptic number.

55232632 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55232632 is an abundant number, since it is smaller than the sum of its proper divisors (72228968).

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

55232632 is a wasteful number, since it uses less digits than its factorization.

55232632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75895 (or 75891 counting only the distinct ones).

The product of its digits is 10800, while the sum is 28.

The square root of 55232632 is about 7431.8659837217. The cubic root of 55232632 is about 380.8306667097.

Adding to 55232632 its reverse (23623255), we get a palindrome (78855887).

The spelling of 55232632 in words is "fifty-five million, two hundred thirty-two thousand, six hundred thirty-two".