55752182161 has 27 divisors (see below), whose sum is σ = 62019073137. Its totient is φ = 50095007040.

The previous prime is 55752182153. The next prime is 55752182249. The reversal of 55752182161 is 16128125755.

The square root of 55752182161 is 236119.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 37135217025 + 18616965136 = 192705^2 + 136444^2 .

It is not a de Polignac number, because 55752182161 - 2³ = 55752182153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55752182111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 125851206 + ... + 125851648.

Almost surely, 2^55752182161 is an apocalyptic number.

55752182161 is the 236119-th square number.

55752182161 is the 118060-th centered octagonal number.

It is an amenable number.

55752182161 is a deficient number, since it is larger than the sum of its proper divisors (6266890976).

55752182161 is an frugal number, since it uses more digits than its factorization.

55752182161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994 (or 497 counting only the distinct ones).

The product of its digits is 168000, while the sum is 43.

The spelling of 55752182161 in words is "fifty-five billion, seven hundred fifty-two million, one hundred eighty-two thousand, one hundred sixty-one".