55537122169 has 4 divisors (see below), whose sum is σ = 55559312896. Its totient is φ = 55514931444.

The previous prime is 55537122167. The next prime is 55537122187. The reversal of 55537122169 is 96122173555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55537122169 - 2¹ = 55537122167 is a prime.

It is a super-2 number, since 2×55537122169² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55537122167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11091609 + ... + 11096614.

It is an arithmetic number, because the mean of its divisors is an integer number (13889828224).

Almost surely, 2^55537122169 is an apocalyptic number.

It is an amenable number.

55537122169 is a deficient number, since it is larger than the sum of its proper divisors (22190727).

55537122169 is a wasteful number, since it uses less digits than its factorization.

55537122169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22190726.

The product of its digits is 567000, while the sum is 46.

The spelling of 55537122169 in words is "fifty-five billion, five hundred thirty-seven million, one hundred twenty-two thousand, one hundred sixty-nine".