55044437688 has 48 divisors (see below), whose sum is σ = 151891501320. Its totient is φ = 18001953216.

The previous prime is 55044437681. The next prime is 55044437699. The reversal of 55044437688 is 88673444055.

It is a happy number.

55044437688 is a `hidden beast` number, since 5 + 50 + 4 + 443 + 76 + 88 = 666.

It is a super-2 number, since 2×55044437688² (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 (55044437681) 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, 7208506 + ... + 7216137.

Almost surely, 2^55044437688 is an apocalyptic number.

It is an amenable number.

55044437688 is an abundant number, since it is smaller than the sum of its proper divisors (96847063632).

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

55044437688 is a wasteful number, since it uses less digits than its factorization.

55044437688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14424708 (or 14424701 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 54.

The spelling of 55044437688 in words is "fifty-five billion, forty-four million, four hundred thirty-seven thousand, six hundred eighty-eight".