54249880 has 16 divisors (see below), whose sum is σ = 122062320. Its totient is φ = 21699936.

The previous prime is 54249841. The next prime is 54249889. The reversal of 54249880 is 8894245.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1356247 = 54249880 / (5 + 4 + 2 + 4 + 9 + 8 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54249889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678084 + ... + 678163.

It is an arithmetic number, because the mean of its divisors is an integer number (7628895).

Almost surely, 2^54249880 is an apocalyptic number.

It is an amenable number.

54249880 is an abundant number, since it is smaller than the sum of its proper divisors (67812440).

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

54249880 is a wasteful number, since it uses less digits than its factorization.

54249880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356258 (or 1356254 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 54249880 is about 7365.4517851928. The cubic root of 54249880 is about 378.5584347877.

The spelling of 54249880 in words is "fifty-four million, two hundred forty-nine thousand, eight hundred eighty".