55444537072 has 20 divisors (see below), whose sum is σ = 108067052016. Its totient is φ = 27556265600.

The previous prime is 55444537009. The next prime is 55444537087. The reversal of 55444537072 is 27073544455.

55444537072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55444537072² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10372429 + ... + 10377772.

Almost surely, 2^55444537072 is an apocalyptic number.

It is an amenable number.

55444537072 is a deficient number, since it is larger than the sum of its proper divisors (52622514944).

55444537072 is a wasteful number, since it uses less digits than its factorization.

55444537072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20750376 (or 20750370 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 46.

The spelling of 55444537072 in words is "fifty-five billion, four hundred forty-four million, five hundred thirty-seven thousand, seventy-two".