55369171321 has 8 divisors (see below), whose sum is σ = 56765595744. Its totient is φ = 53977691040.

The previous prime is 55369171307. The next prime is 55369171379. The reversal of 55369171321 is 12317196355.

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 55369171321 - 2¹⁷ = 55369040249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55369121321) 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, 1213351 + ... + 1258156.

It is an arithmetic number, because the mean of its divisors is an integer number (7095699468).

Almost surely, 2^55369171321 is an apocalyptic number.

It is an amenable number.

55369171321 is a deficient number, since it is larger than the sum of its proper divisors (1396424423).

55369171321 is a wasteful number, since it uses less digits than its factorization.

55369171321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472071.

The product of its digits is 170100, while the sum is 43.

The spelling of 55369171321 in words is "fifty-five billion, three hundred sixty-nine million, one hundred seventy-one thousand, three hundred twenty-one".