20080056 has 32 divisors (see below), whose sum is σ = 50693760. Its totient is φ = 6627552.

The previous prime is 20080031. The next prime is 20080069. The reversal of 20080056 is 65008002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1590 + ... + 6533.

It is an arithmetic number, because the mean of its divisors is an integer number (1584180).

Almost surely, 2^20080056 is an apocalyptic number.

It is an amenable number.

20080056 is an abundant number, since it is smaller than the sum of its proper divisors (30613704).

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

20080056 is a wasteful number, since it uses less digits than its factorization.

20080056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8235 (or 8231 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 20080056 is about 4481.0775489831. The cubic root of 20080056 is about 271.8034551868.

Adding to 20080056 its reverse (65008002), we get a palindrome (85088058).

The spelling of 20080056 in words is "twenty million, eighty thousand, fifty-six".