225192449 has 2 divisors, whose sum is σ = 225192450. Its totient is φ = 225192448.

The previous prime is 225192391. The next prime is 225192469. The reversal of 225192449 is 944291522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143832049 + 81360400 = 11993^2 + 9020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225192449 is a prime.

It is a Chen prime.

It is equal to p_12392858 and since 225192449 and 12392858 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (225192469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112596224 + 112596225.

It is an arithmetic number, because the mean of its divisors is an integer number (112596225).

Almost surely, 2^225192449 is an apocalyptic number.

It is an amenable number.

225192449 is a deficient number, since it is larger than the sum of its proper divisors (1).

225192449 is an equidigital number, since it uses as much as digits as its factorization.

225192449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 225192449 is about 15006.4135955264. The cubic root of 225192449 is about 608.3935595759.

The spelling of 225192449 in words is "two hundred twenty-five million, one hundred ninety-two thousand, four hundred forty-nine".