54439218240 has 112 divisors (see below), whose sum is σ = 188557692480. Its totient is φ = 13197383680.

The previous prime is 54439218199. The next prime is 54439218277. The reversal of 54439218240 is 4281293445.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 54439218192 and 54439218201.

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, 2567055 + ... + 2588174.

Almost surely, 2^54439218240 is an apocalyptic number.

It is an amenable number.

54439218240 is an abundant number, since it is smaller than the sum of its proper divisors (134118474240).

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

54439218240 is a wasteful number, since it uses less digits than its factorization.

54439218240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5155260 (or 5155250 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 54439218240 in words is "fifty-four billion, four hundred thirty-nine million, two hundred eighteen thousand, two hundred forty".