20204051 has 16 divisors (see below), whose sum is σ = 24466944. Its totient is φ = 16308864.

The previous prime is 20204047. The next prime is 20204059. The reversal of 20204051 is 15040202.

It is a cyclic number.

It is not a de Polignac number, because 20204051 - 2² = 20204047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20204059) 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, 9851 + ... + 11723.

It is an arithmetic number, because the mean of its divisors is an integer number (1529184).

Almost surely, 2^20204051 is an apocalyptic number.

20204051 is a deficient number, since it is larger than the sum of its proper divisors (4262893).

20204051 is a wasteful number, since it uses less digits than its factorization.

20204051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 20204051 is about 4494.8916560914. The cubic root of 20204051 is about 272.3617726132.

Adding to 20204051 its reverse (15040202), we get a palindrome (35244253).

The spelling of 20204051 in words is "twenty million, two hundred four thousand, fifty-one".