225394924669 has 2 divisors, whose sum is σ = 225394924670. Its totient is φ = 225394924668.

The previous prime is 225394924633. The next prime is 225394924673. The reversal of 225394924669 is 966429493522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186580802500 + 38814122169 = 431950^2 + 197013^2 .

It is a cyclic number.

It is not a de Polignac number, because 225394924669 - 2¹⁷ = 225394793597 is a prime.

It is a super-2 number, since 2×225394924669² (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 (225394924369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112697462334 + 112697462335.

It is an arithmetic number, because the mean of its divisors is an integer number (112697462335).

Almost surely, 2^225394924669 is an apocalyptic number.

It is an amenable number.

225394924669 is a deficient number, since it is larger than the sum of its proper divisors (1).

225394924669 is an equidigital number, since it uses as much as digits as its factorization.

225394924669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50388480, while the sum is 61.

The spelling of 225394924669 in words is "two hundred twenty-five billion, three hundred ninety-four million, nine hundred twenty-four thousand, six hundred sixty-nine".