20004532051 has 4 divisors (see below), whose sum is σ = 22862322352. Its totient is φ = 17146741752.

The previous prime is 20004532013. The next prime is 20004532063. The reversal of 20004532051 is 15023540002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15023540002 = 2 ⋅7511770001.

It is not a de Polignac number, because 20004532051 - 2²⁵ = 19970977619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20004532091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428895140 + ... + 1428895153.

It is an arithmetic number, because the mean of its divisors is an integer number (5715580588).

Almost surely, 2^20004532051 is an apocalyptic number.

20004532051 is a deficient number, since it is larger than the sum of its proper divisors (2857790301).

20004532051 is an equidigital number, since it uses as much as digits as its factorization.

20004532051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857790300.

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 20004532051 in words is "twenty billion, four million, five hundred thirty-two thousand, fifty-one".