55324172840552 has 192 divisors, whose sum is σ = 136644288768000. Its totient is φ = 20743011273600.

The previous prime is 55324172840537. The next prime is 55324172840597. The reversal of 55324172840552 is 25504827142355.

It is a junction number, because it is equal to n+sod(n) for n = 55324172840494 and 55324172840503.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22771199 + ... + 25083377.

It is an arithmetic number, because the mean of its divisors is an integer number (711689004000).

Almost surely, 2^{55324172840552} 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 55324172840552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68322144384000).

55324172840552 is an abundant number, since it is smaller than the sum of its proper divisors (81320115927448).

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

55324172840552 is a wasteful number, since it uses less digits than its factorization.

55324172840552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312420 (or 2312409 counting only the distinct ones).

The product of its (nonzero) digits is 13440000, while the sum is 53.

The spelling of 55324172840552 in words is "fifty-five trillion, three hundred twenty-four billion, one hundred seventy-two million, eight hundred forty thousand, five hundred fifty-two".