55854720 has 96 divisors (see below), whose sum is σ = 192893220. Its totient is φ = 14893056.

The previous prime is 55854713. The next prime is 55854731. The reversal of 55854720 is 2745855.

It is a happy number.

55854720 is a `hidden beast` number, since 5 + 585 + 4 + 72 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51494976 + 4359744 = 7176^2 + 2088^2 .

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 912 + ... + 10608.

Almost surely, 2^55854720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55854720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96446610).

55854720 is an abundant number, since it is smaller than the sum of its proper divisors (137038500).

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

55854720 is a wasteful number, since it uses less digits than its factorization.

55854720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9722 (or 9707 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 55854720 is about 7473.6015414257. The cubic root of 55854720 is about 382.2551040357.

It can be divided in two parts, 558 and 54720, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 55854720 in words is "fifty-five million, eight hundred fifty-four thousand, seven hundred twenty".