55057173117952 has 132 divisors (see below), whose sum is σ = 112521681377200. Its totient is φ = 26925663485952.

The previous prime is 55057173117931. The next prime is 55057173117979. The reversal of 55057173117952 is 25971137175055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 709305448 + ... + 709383064.

Almost surely, 2^{55057173117952} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55057173117952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56260840688600).

55057173117952 is an abundant number, since it is smaller than the sum of its proper divisors (57464508259248).

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

55057173117952 is an equidigital number, since it uses as much as digits as its factorization.

55057173117952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77954 (or 77877 counting only the distinct ones).

The product of its (nonzero) digits is 11576250, while the sum is 58.

The spelling of 55057173117952 in words is "fifty-five trillion, fifty-seven billion, one hundred seventy-three million, one hundred seventeen thousand, nine hundred fifty-two".