225283391 has 2 divisors, whose sum is σ = 225283392. Its totient is φ = 225283390.

The previous prime is 225283349. The next prime is 225283447. The reversal of 225283391 is 193382522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225283391 - 2⁶ = 225283327 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225283691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112641695 + 112641696.

It is an arithmetic number, because the mean of its divisors is an integer number (112641696).

Almost surely, 2^225283391 is an apocalyptic number.

225283391 is a deficient number, since it is larger than the sum of its proper divisors (1).

225283391 is an equidigital number, since it uses as much as digits as its factorization.

225283391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 225283391 is about 15009.4433940769. The cubic root of 225283391 is about 608.4754466923.

The spelling of 225283391 in words is "two hundred twenty-five million, two hundred eighty-three thousand, three hundred ninety-one".