56857648 has 20 divisors (see below), whose sum is σ = 111234448. Its totient is φ = 28152000.

The previous prime is 56857637. The next prime is 56857649. The reversal of 56857648 is 84675865.

It is not an unprimeable number, because it can be changed into a prime (56857649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15603 + ... + 18898.

Almost surely, 2^56857648 is an apocalyptic number.

It is an amenable number.

56857648 is a deficient number, since it is larger than the sum of its proper divisors (54376800).

56857648 is a wasteful number, since it uses less digits than its factorization.

56857648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34612 (or 34606 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 49.

The square root of 56857648 is about 7540.4010503421. The cubic root of 56857648 is about 384.5294707139.

The spelling of 56857648 in words is "fifty-six million, eight hundred fifty-seven thousand, six hundred forty-eight".