55617352281 has 6 divisors (see below), whose sum is σ = 80336175530. Its totient is φ = 37078234848.

The previous prime is 55617352213. The next prime is 55617352283. The reversal of 55617352281 is 18225371655.

55617352281 is a `hidden beast` number, since 5 + 5 + 6 + 17 + 352 + 281 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35075296656 + 20542055625 = 187284^2 + 143325^2 .

It is not a de Polignac number, because 55617352281 - 2¹¹ = 55617350233 is a prime.

It is a super-2 number, since 2×55617352281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55617352283) 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 5 ways as a sum of consecutive naturals, for example, 3089852896 + ... + 3089852913.

Almost surely, 2^55617352281 is an apocalyptic number.

It is an amenable number.

55617352281 is a deficient number, since it is larger than the sum of its proper divisors (24718823249).

55617352281 is a wasteful number, since it uses less digits than its factorization.

55617352281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6179705815 (or 6179705812 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The spelling of 55617352281 in words is "fifty-five billion, six hundred seventeen million, three hundred fifty-two thousand, two hundred eighty-one".