22450755557 has 2 divisors, whose sum is σ = 22450755558. Its totient is φ = 22450755556.

The previous prime is 22450755529. The next prime is 22450755563. The reversal of 22450755557 is 75555705422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22013360161 + 437395396 = 148369^2 + 20914^2 .

It is a cyclic number.

It is not a de Polignac number, because 22450755557 - 2¹⁰ = 22450754533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22450755157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11225377778 + 11225377779.

It is an arithmetic number, because the mean of its divisors is an integer number (11225377779).

Almost surely, 2^22450755557 is an apocalyptic number.

It is an amenable number.

22450755557 is a deficient number, since it is larger than the sum of its proper divisors (1).

22450755557 is an equidigital number, since it uses as much as digits as its factorization.

22450755557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2450000, while the sum is 47.

The spelling of 22450755557 in words is "twenty-two billion, four hundred fifty million, seven hundred fifty-five thousand, five hundred fifty-seven".