55358424 has 128 divisors (see below), whose sum is σ = 175219200. Its totient is φ = 16030080.

The previous prime is 55358399. The next prime is 55358441. The reversal of 55358424 is 42485355.

55358424 is a `hidden beast` number, since 5 + 53 + 584 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54142 + ... + 55154.

It is an arithmetic number, because the mean of its divisors is an integer number (1368900).

Almost surely, 2^55358424 is an apocalyptic number.

55358424 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55358424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87609600).

55358424 is an abundant number, since it is smaller than the sum of its proper divisors (119860776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55358424 is a wasteful number, since it uses less digits than its factorization.

55358424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1052 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 55358424 is about 7440.3241864854. The cubic root of 55358424 is about 381.1195607162.

The spelling of 55358424 in words is "fifty-five million, three hundred fifty-eight thousand, four hundred twenty-four".