54399888 has 120 divisors (see below), whose sum is σ = 163456800. Its totient is φ = 16837632.

The previous prime is 54399887. The next prime is 54399893. The reversal of 54399888 is 88899345.

It is a happy number.

54399888 is a `hidden beast` number, since 543 + 9 + 98 + 8 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (54399883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161256 + ... + 161592.

It is an arithmetic number, because the mean of its divisors is an integer number (1362140).

Almost surely, 2^54399888 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 54399888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81728400).

54399888 is an abundant number, since it is smaller than the sum of its proper divisors (109056912).

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

54399888 is a wasteful number, since it uses less digits than its factorization.

54399888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 420 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 54399888 is about 7375.6279732644. The cubic root of 54399888 is about 378.9070348398.

The spelling of 54399888 in words is "fifty-four million, three hundred ninety-nine thousand, eight hundred eighty-eight".