55124391 has 8 divisors (see below), whose sum is σ = 83999104. Its totient is φ = 31499640.

The previous prime is 55124371. The next prime is 55124401. The reversal of 55124391 is 19342155.

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

It is not a de Polignac number, because 55124391 - 2⁵ = 55124359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55124341) 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, 1312465 + ... + 1312506.

It is an arithmetic number, because the mean of its divisors is an integer number (10499888).

Almost surely, 2^55124391 is an apocalyptic number.

55124391 is a deficient number, since it is larger than the sum of its proper divisors (28874713).

55124391 is a wasteful number, since it uses less digits than its factorization.

55124391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624981.

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

The square root of 55124391 is about 7424.5801901522. The cubic root of 55124391 is about 380.5817290334.

It can be divided in two parts, 551 and 24391, that added together give a palindrome (24942).

The spelling of 55124391 in words is "fifty-five million, one hundred twenty-four thousand, three hundred ninety-one".