20039051 has 4 divisors (see below), whose sum is σ = 20685504. Its totient is φ = 19392600.

The previous prime is 20038987. The next prime is 20039069. The reversal of 20039051 is 15093002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20039051 - 2⁶ = 20038987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20039251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323180 + ... + 323241.

It is an arithmetic number, because the mean of its divisors is an integer number (5171376).

Almost surely, 2^20039051 is an apocalyptic number.

20039051 is a deficient number, since it is larger than the sum of its proper divisors (646453).

20039051 is an equidigital number, since it uses as much as digits as its factorization.

20039051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646452.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 20039051 is about 4476.4998603820. The cubic root of 20039051 is about 271.6183146704.

The spelling of 20039051 in words is "twenty million, thirty-nine thousand, fifty-one".