22504256251 has 2 divisors, whose sum is σ = 22504256252. Its totient is φ = 22504256250.

The previous prime is 22504256231. The next prime is 22504256263. The reversal of 22504256251 is 15265240522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22504256251 - 2²³ = 22495867643 is a prime.

It is not a weakly prime, because it can be changed into another prime (22504256231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11252128125 + 11252128126.

It is an arithmetic number, because the mean of its divisors is an integer number (11252128126).

Almost surely, 2^22504256251 is an apocalyptic number.

22504256251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22504256251 is an equidigital number, since it uses as much as digits as its factorization.

22504256251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 22504256251 its reverse (15265240522), we get a palindrome (37769496773).

The spelling of 22504256251 in words is "twenty-two billion, five hundred four million, two hundred fifty-six thousand, two hundred fifty-one".