55572471161 has 8 divisors (see below), whose sum is σ = 57821073480. Its totient is φ = 53346022912.

The previous prime is 55572471133. The next prime is 55572471179. The reversal of 55572471161 is 16117427555.

55572471161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4233974761 + 51338496400 = 65069^2 + 226580^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55572471161 - 2²² = 55568276857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55572471121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5533400 + ... + 5543433.

It is an arithmetic number, because the mean of its divisors is an integer number (7227634185).

Almost surely, 2^55572471161 is an apocalyptic number.

It is an amenable number.

55572471161 is a deficient number, since it is larger than the sum of its proper divisors (2248602319).

55572471161 is a wasteful number, since it uses less digits than its factorization.

55572471161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11077035.

The product of its digits is 294000, while the sum is 44.

The spelling of 55572471161 in words is "fifty-five billion, five hundred seventy-two million, four hundred seventy-one thousand, one hundred sixty-one".