54570816 has 84 divisors (see below), whose sum is σ = 165648132. Its totient is φ = 17117184.

The previous prime is 54570809. The next prime is 54570821. The reversal of 54570816 is 61807545.

54570816 is a `hidden beast` number, since 5 + 4 + 570 + 81 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19713600 + 34857216 = 4440^2 + 5904^2 .

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 11 ways as a sum of consecutive naturals, for example, 7006 + ... + 12578.

Almost surely, 2^54570816 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 54570816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82824066).

54570816 is an abundant number, since it is smaller than the sum of its proper divisors (111077316).

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

54570816 is a wasteful number, since it uses less digits than its factorization.

54570816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608 (or 5595 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 54570816 is about 7387.2062378141. The cubic root of 54570816 is about 379.3034701351.

The spelling of 54570816 in words is "fifty-four million, five hundred seventy thousand, eight hundred sixteen".