54578240 has 28 divisors (see below), whose sum is σ = 129965196. Its totient is φ = 21831168.

The previous prime is 54578221. The next prime is 54578243. The reversal of 54578240 is 4287545.

It can be written as a sum of positive squares in 2 ways, for example, as 7573504 + 47004736 = 2752^2 + 6856^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 54578240.

It is not an unprimeable number, because it can be changed into a prime (54578243) 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, 84959 + ... + 85598.

Almost surely, 2^54578240 is an apocalyptic number.

It is an amenable number.

54578240 is an abundant number, since it is smaller than the sum of its proper divisors (75386956).

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

54578240 is a wasteful number, since it uses less digits than its factorization.

54578240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170574 (or 170564 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 54578240 is about 7387.7087110957. The cubic root of 54578240 is about 379.3206699346.

The spelling of 54578240 in words is "fifty-four million, five hundred seventy-eight thousand, two hundred forty".