20556092 has 12 divisors (see below), whose sum is σ = 36303960. Its totient is φ = 10183536.

The previous prime is 20556079. The next prime is 20556113. The reversal of 20556092 is 29065502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23138 + ... + 24009.

It is an arithmetic number, because the mean of its divisors is an integer number (3025330).

Almost surely, 2^20556092 is an apocalyptic number.

It is an amenable number.

20556092 is a deficient number, since it is larger than the sum of its proper divisors (15747868).

20556092 is a wasteful number, since it uses less digits than its factorization.

20556092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47260 (or 47258 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 20556092 is about 4533.8826627958. The cubic root of 20556092 is about 273.9345751051.

The spelling of 20556092 in words is "twenty million, five hundred fifty-six thousand, ninety-two".