50856640 has 28 divisors (see below), whose sum is σ = 121103136. Its totient is φ = 20342528.

The previous prime is 50856623. The next prime is 50856653. The reversal of 50856640 is 4665805.

It is a junction number, because it is equal to n+sod(n) for n = 50856596 and 50856605.

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, 79144 + ... + 79783.

It is an arithmetic number, because the mean of its divisors is an integer number (4325112).

Almost surely, 2^50856640 is an apocalyptic number.

It is an amenable number.

50856640 is an abundant number, since it is smaller than the sum of its proper divisors (70246496).

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

50856640 is a wasteful number, since it uses less digits than its factorization.

50856640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158944 (or 158934 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 50856640 is about 7131.3841573709. The cubic root of 50856640 is about 370.4951733875.

The spelling of 50856640 in words is "fifty million, eight hundred fifty-six thousand, six hundred forty".