20056011 has 16 divisors (see below), whose sum is σ = 27692448. Its totient is φ = 12910080.

The previous prime is 20055991. The next prime is 20056013. The reversal of 20056011 is 11065002.

It is not a de Polignac number, because 20056011 - 2¹⁴ = 20039627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20056013) 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, 206715 + ... + 206811.

It is an arithmetic number, because the mean of its divisors is an integer number (1730778).

Almost surely, 2^20056011 is an apocalyptic number.

20056011 is a deficient number, since it is larger than the sum of its proper divisors (7636437).

20056011 is an frugal number, since it uses more digits than its factorization.

20056011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 20056011 is about 4478.3937968875. The cubic root of 20056011 is about 271.6949208865.

The spelling of 20056011 in words is "twenty million, fifty-six thousand, eleven".