55574157731181 has 16 divisors (see below), whose sum is σ = 74311251763200. Its totient is φ = 36943300326960.

The previous prime is 55574157731179. The next prime is 55574157731203. The reversal of 55574157731181 is 18113775147555.

It is not a de Polignac number, because 55574157731181 - 2¹ = 55574157731179 is a prime.

It is a super-2 number, since 2×55574157731181² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55574157731681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1635331 + ... + 10668768.

It is an arithmetic number, because the mean of its divisors is an integer number (4644453235200).

Almost surely, 2^{55574157731181} is an apocalyptic number.

It is an amenable number.

55574157731181 is a deficient number, since it is larger than the sum of its proper divisors (18737094032019).

55574157731181 is a wasteful number, since it uses less digits than its factorization.

55574157731181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12308416.

The product of its digits is 20580000, while the sum is 60.

The spelling of 55574157731181 in words is "fifty-five trillion, five hundred seventy-four billion, one hundred fifty-seven million, seven hundred thirty-one thousand, one hundred eighty-one".