225172645799 has 2 divisors, whose sum is σ = 225172645800. Its totient is φ = 225172645798.

The previous prime is 225172645787. The next prime is 225172645843. The reversal of 225172645799 is 997546271522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225172645799 - 2⁴ = 225172645783 is a prime.

It is a super-2 number, since 2×225172645799² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225172645729) 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, 112586322899 + 112586322900.

It is an arithmetic number, because the mean of its divisors is an integer number (112586322900).

Almost surely, 2^225172645799 is an apocalyptic number.

225172645799 is a deficient number, since it is larger than the sum of its proper divisors (1).

225172645799 is an equidigital number, since it uses as much as digits as its factorization.

225172645799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19051200, while the sum is 59.

The spelling of 225172645799 in words is "two hundred twenty-five billion, one hundred seventy-two million, six hundred forty-five thousand, seven hundred ninety-nine".