20056492 has 6 divisors (see below), whose sum is σ = 35098868. Its totient is φ = 10028244.

The previous prime is 20056471. The next prime is 20056499. The reversal of 20056492 is 29465002.

It is a self number, because there is not a number n which added to its sum of digits gives 20056492.

It is not an unprimeable number, because it can be changed into a prime (20056499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2507058 + ... + 2507065.

Almost surely, 2^20056492 is an apocalyptic number.

It is an amenable number.

20056492 is a deficient number, since it is larger than the sum of its proper divisors (15042376).

20056492 is a wasteful number, since it uses less digits than its factorization.

20056492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014127 (or 5014125 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 20056492 is about 4478.4474988549. The cubic root of 20056492 is about 271.6970928740.

The spelling of 20056492 in words is "twenty million, fifty-six thousand, four hundred ninety-two".