55228185432 has 48 divisors (see below), whose sum is σ = 170944385040. Its totient is φ = 15779481408.

The previous prime is 55228185421. The next prime is 55228185437. The reversal of 55228185432 is 23458182255.

55228185432 is a `hidden beast` number, since 5 + 5 + 22 + 81 + 8 + 543 + 2 = 666.

It is a super-2 number, since 2×55228185432² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55228185437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54789363 + ... + 54790370.

It is an arithmetic number, because the mean of its divisors is an integer number (3561341355).

Almost surely, 2^55228185432 is an apocalyptic number.

It is an amenable number.

55228185432 is an abundant number, since it is smaller than the sum of its proper divisors (115716199608).

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

55228185432 is a wasteful number, since it uses less digits than its factorization.

55228185432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109579752 (or 109579745 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The spelling of 55228185432 in words is "fifty-five billion, two hundred twenty-eight million, one hundred eighty-five thousand, four hundred thirty-two".