225567613969 has 2 divisors, whose sum is σ = 225567613970. Its totient is φ = 225567613968.

The previous prime is 225567613913. The next prime is 225567613979. The reversal of 225567613969 is 969316765522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225563254225 + 4359744 = 474935^2 + 2088^2 .

It is a cyclic number.

It is not a de Polignac number, because 225567613969 - 2⁷ = 225567613841 is a prime.

It is a super-2 number, since 2×225567613969² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (225567613979) 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, 112783806984 + 112783806985.

It is an arithmetic number, because the mean of its divisors is an integer number (112783806985).

Almost surely, 2^225567613969 is an apocalyptic number.

It is an amenable number.

225567613969 is a deficient number, since it is larger than the sum of its proper divisors (1).

225567613969 is an equidigital number, since it uses as much as digits as its factorization.

225567613969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36741600, while the sum is 61.

The spelling of 225567613969 in words is "two hundred twenty-five billion, five hundred sixty-seven million, six hundred thirteen thousand, nine hundred sixty-nine".