54255540 has 48 divisors (see below), whose sum is σ = 152409600. Its totient is φ = 14421120.

The previous prime is 54255529. The next prime is 54255577. The reversal of 54255540 is 4555245.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 54255498 and 54255507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19645 + ... + 22235.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^54255540 is an apocalyptic number.

It is an amenable number.

54255540 is an abundant number, since it is smaller than the sum of its proper divisors (98154060).

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

54255540 is a wasteful number, since it uses less digits than its factorization.

54255540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952 (or 2950 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 54255540 is about 7365.8360014326. The cubic root of 54255540 is about 378.5715995863.

The spelling of 54255540 in words is "fifty-four million, two hundred fifty-five thousand, five hundred forty".