54581568 has 56 divisors (see below), whose sum is σ = 145084800. Its totient is φ = 18109440.

The previous prime is 54581557. The next prime is 54581581. The reversal of 54581568 is 86518545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51508 + ... + 52556.

It is an arithmetic number, because the mean of its divisors is an integer number (2590800).

Almost surely, 2^54581568 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 54581568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72542400).

54581568 is an abundant number, since it is smaller than the sum of its proper divisors (90503232).

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

54581568 is a wasteful number, since it uses less digits than its factorization.

54581568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1325 counting only the distinct ones).

The product of its digits is 192000, while the sum is 42.

The square root of 54581568 is about 7387.9339466457. The cubic root of 54581568 is about 379.3283796832.

The spelling of 54581568 in words is "fifty-four million, five hundred eighty-one thousand, five hundred sixty-eight".