55171507044 has 48 divisors (see below), whose sum is σ = 135025890048. Its totient is φ = 17512743168.

The previous prime is 55171507021. The next prime is 55171507057. The reversal of 55171507044 is 44070517155.

55171507044 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 2×55171507044² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55171506993 and 55171507011.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301049 + ... + 1342784.

It is an arithmetic number, because the mean of its divisors is an integer number (2813039376).

Almost surely, 2^55171507044 is an apocalyptic number.

It is an amenable number.

55171507044 is an abundant number, since it is smaller than the sum of its proper divisors (79854383004).

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

55171507044 is a wasteful number, since it uses less digits than its factorization.

55171507044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643924 (or 2643922 counting only the distinct ones).

The product of its (nonzero) digits is 98000, while the sum is 39.

The spelling of 55171507044 in words is "fifty-five billion, one hundred seventy-one million, five hundred seven thousand, forty-four".