22626506257 has 2 divisors, whose sum is σ = 22626506258. Its totient is φ = 22626506256.

The previous prime is 22626506251. The next prime is 22626506261. The reversal of 22626506257 is 75260562622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15704099856 + 6922406401 = 125316^2 + 83201^2 .

It is a cyclic number.

It is not a de Polignac number, because 22626506257 - 2¹¹ = 22626504209 is a prime.

It is not a weakly prime, because it can be changed into another prime (22626506251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11313253128 + 11313253129.

It is an arithmetic number, because the mean of its divisors is an integer number (11313253129).

Almost surely, 2^22626506257 is an apocalyptic number.

It is an amenable number.

22626506257 is a deficient number, since it is larger than the sum of its proper divisors (1).

22626506257 is an equidigital number, since it uses as much as digits as its factorization.

22626506257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 22626506257 in words is "twenty-two billion, six hundred twenty-six million, five hundred six thousand, two hundred fifty-seven".