225274793 has 2 divisors, whose sum is σ = 225274794. Its totient is φ = 225274792.

The previous prime is 225274781. The next prime is 225274801. The reversal of 225274793 is 397472522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212372329 + 12902464 = 14573^2 + 3592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225274793 is a prime.

It is a super-2 number, since 2×225274793² = 101497464722385698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225274793.

It is not a weakly prime, because it can be changed into another prime (225274723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112637396 + 112637397.

It is an arithmetic number, because the mean of its divisors is an integer number (112637397).

Almost surely, 2^225274793 is an apocalyptic number.

It is an amenable number.

225274793 is a deficient number, since it is larger than the sum of its proper divisors (1).

225274793 is an equidigital number, since it uses as much as digits as its factorization.

225274793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 225274793 is about 15009.1569716623. The cubic root of 225274793 is about 608.4677057185.

The spelling of 225274793 in words is "two hundred twenty-five million, two hundred seventy-four thousand, seven hundred ninety-three".