55324191 has 8 divisors (see below), whose sum is σ = 79439920. Its totient is φ = 34045632.

The previous prime is 55324183. The next prime is 55324193. The reversal of 55324191 is 19142355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55324191 - 2³ = 55324183 is a prime.

It is a super-2 number, since 2×55324191² = 6121532219608962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55324193) 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, 709246 + ... + 709323.

It is an arithmetic number, because the mean of its divisors is an integer number (9929990).

Almost surely, 2^55324191 is an apocalyptic number.

55324191 is a deficient number, since it is larger than the sum of its proper divisors (24115729).

55324191 is a wasteful number, since it uses less digits than its factorization.

55324191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418585.

The product of its digits is 5400, while the sum is 30.

The square root of 55324191 is about 7438.0233261264. The cubic root of 55324191 is about 381.0409845620.

The spelling of 55324191 in words is "fifty-five million, three hundred twenty-four thousand, one hundred ninety-one".