20056479 has 16 divisors (see below), whose sum is σ = 27752160. Its totient is φ = 12873600.

The previous prime is 20056471. The next prime is 20056499. The reversal of 20056479 is 97465002.

It is not a de Polignac number, because 20056479 - 2³ = 20056471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20056471) 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, 10317 + ... + 12105.

It is an arithmetic number, because the mean of its divisors is an integer number (1734510).

Almost surely, 2^20056479 is an apocalyptic number.

20056479 is a deficient number, since it is larger than the sum of its proper divisors (7695681).

20056479 is a wasteful number, since it uses less digits than its factorization.

20056479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 20056479 is about 4478.4460474589. The cubic root of 20056479 is about 271.6970341721.

The spelling of 20056479 in words is "twenty million, fifty-six thousand, four hundred seventy-nine".