56016840 has 64 divisors (see below), whose sum is σ = 183332160. Its totient is φ = 13579520.

The previous prime is 56016833. The next prime is 56016847. The reversal of 56016840 is 4861065.

It is an interprime number because it is at equal distance from previous prime (56016833) and next prime (56016847).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 56016798 and 56016807.

It is not an unprimeable number, because it can be changed into a prime (56016847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19899 + ... + 22538.

It is an arithmetic number, because the mean of its divisors is an integer number (2864565).

Almost surely, 2^56016840 is an apocalyptic number.

It is an amenable number.

56016840 is an abundant number, since it is smaller than the sum of its proper divisors (127315320).

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

56016840 is a wasteful number, since it uses less digits than its factorization.

56016840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42462 (or 42458 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 56016840 is about 7484.4398588004. The cubic root of 56016840 is about 382.6245824266.

The spelling of 56016840 in words is "fifty-six million, sixteen thousand, eight hundred forty".