50856840 has 48 divisors (see below), whose sum is σ = 165285900. Its totient is φ = 13561728.

The previous prime is 50856823. The next prime is 50856847. The reversal of 50856840 is 4865805.

It is a happy number.

50856840 is a `hidden beast` number, since 50 + 8 + 568 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 50722884 + 133956 = 7122^2 + 366^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 50856795 and 50856804.

It is not an unprimeable number, because it can be changed into a prime (50856847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70275 + ... + 70994.

Almost surely, 2^50856840 is an apocalyptic number.

It is an amenable number.

50856840 is an abundant number, since it is smaller than the sum of its proper divisors (114429060).

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

50856840 is a wasteful number, since it uses less digits than its factorization.

50856840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141286 (or 141279 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 50856840 is about 7131.3981798803. The cubic root of 50856840 is about 370.4956590595.

The spelling of 50856840 in words is "fifty million, eight hundred fifty-six thousand, eight hundred forty".