204022400051 has 2 divisors, whose sum is σ = 204022400052. Its totient is φ = 204022400050.

The previous prime is 204022399993. The next prime is 204022400107. The reversal of 204022400051 is 150004220402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204022400051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204022399996 and 204022400032.

It is not a weakly prime, because it can be changed into another prime (204022400851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102011200025 + 102011200026.

It is an arithmetic number, because the mean of its divisors is an integer number (102011200026).

Almost surely, 2^204022400051 is an apocalyptic number.

204022400051 is a deficient number, since it is larger than the sum of its proper divisors (1).

204022400051 is an equidigital number, since it uses as much as digits as its factorization.

204022400051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 204022400051 its reverse (150004220402), we get a palindrome (354026620453).

The spelling of 204022400051 in words is "two hundred four billion, twenty-two million, four hundred thousand, fifty-one".