55584291 has 16 divisors (see below), whose sum is σ = 89158400. Its totient is φ = 30090528.

The previous prime is 55584289. The next prime is 55584341. The reversal of 55584291 is 19248555.

It is not a de Polignac number, because 55584291 - 2¹ = 55584289 is a prime.

It is a super-2 number, since 2×55584291² = 6179226811945362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55584211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69256 + ... + 70053.

It is an arithmetic number, because the mean of its divisors is an integer number (5572400).

Almost surely, 2^55584291 is an apocalyptic number.

55584291 is a deficient number, since it is larger than the sum of its proper divisors (33574109).

55584291 is a wasteful number, since it uses less digits than its factorization.

55584291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139338.

The product of its digits is 72000, while the sum is 39.

The square root of 55584291 is about 7455.4873080168. The cubic root of 55584291 is about 381.6371905901.

The spelling of 55584291 in words is "fifty-five million, five hundred eighty-four thousand, two hundred ninety-one".