55814724 has 144 divisors (see below), whose sum is σ = 172368000. Its totient is φ = 15567552.

The previous prime is 55814711. The next prime is 55814729. The reversal of 55814724 is 42741855.

55814724 is a `hidden beast` number, since 5 + 581 + 4 + 72 + 4 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55814729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 280377 + ... + 280575.

It is an arithmetic number, because the mean of its divisors is an integer number (1197000).

Almost surely, 2^55814724 is an apocalyptic number.

55814724 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 55814724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86184000).

55814724 is an abundant number, since it is smaller than the sum of its proper divisors (116553276).

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

55814724 is a wasteful number, since it uses less digits than its factorization.

55814724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 264 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 55814724 is about 7470.9252439039. The cubic root of 55814724 is about 382.1638415256.

The spelling of 55814724 in words is "fifty-five million, eight hundred fourteen thousand, seven hundred twenty-four".