54503440 has 20 divisors (see below), whose sum is σ = 126720684. Its totient is φ = 21801344.

The previous prime is 54503417. The next prime is 54503459. The reversal of 54503440 is 4430545.

It can be written as a sum of positive squares in 2 ways, for example, as 11048976 + 43454464 = 3324^2 + 6592^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340567 + ... + 340726.

Almost surely, 2^54503440 is an apocalyptic number.

It is an amenable number.

54503440 is an abundant number, since it is smaller than the sum of its proper divisors (72217244).

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

54503440 is a wasteful number, since it uses less digits than its factorization.

54503440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681306 (or 681300 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 54503440 is about 7382.6445126391. The cubic root of 54503440 is about 379.1473031746.

Adding to 54503440 its reverse (4430545), we get a palindrome (58933985).

The spelling of 54503440 in words is "fifty-four million, five hundred three thousand, four hundred forty".