56539648 has 40 divisors (see below), whose sum is σ = 123251040. Its totient is φ = 25697280.

The previous prime is 56539631. The next prime is 56539667. The reversal of 56539648 is 84693565.

It is a junction number, because it is equal to n+sod(n) for n = 56539598 and 56539607.

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, 613 + ... + 10651.

It is an arithmetic number, because the mean of its divisors is an integer number (3081276).

Almost surely, 2^56539648 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 56539648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61625520).

56539648 is an abundant number, since it is smaller than the sum of its proper divisors (66711392).

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

56539648 is a wasteful number, since it uses less digits than its factorization.

56539648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10068 (or 10052 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The square root of 56539648 is about 7519.2850723988. The cubic root of 56539648 is about 383.8112498301.

The spelling of 56539648 in words is "fifty-six million, five hundred thirty-nine thousand, six hundred forty-eight".