22553256476789 has 2 divisors, whose sum is σ = 22553256476790. Its totient is φ = 22553256476788.

The previous prime is 22553256476693. The next prime is 22553256476791. The reversal of 22553256476789 is 98767465235522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18092007040900 + 4461249435889 = 4253470^2 + 2112167^2 .

It is a cyclic number.

It is not a de Polignac number, because 22553256476789 - 2²⁰ = 22553255428213 is a prime.

Together with 22553256476791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22553256446789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276628238394 + 11276628238395.

It is an arithmetic number, because the mean of its divisors is an integer number (11276628238395).

Almost surely, 2^{22553256476789} is an apocalyptic number.

It is an amenable number.

22553256476789 is a deficient number, since it is larger than the sum of its proper divisors (1).

22553256476789 is an equidigital number, since it uses as much as digits as its factorization.

22553256476789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096000, while the sum is 71.

The spelling of 22553256476789 in words is "twenty-two trillion, five hundred fifty-three billion, two hundred fifty-six million, four hundred seventy-six thousand, seven hundred eighty-nine".