225291863 has 2 divisors, whose sum is σ = 225291864. Its totient is φ = 225291862.

The previous prime is 225291839. The next prime is 225291881. The reversal of 225291863 is 368192522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225291863 - 2⁶ = 225291799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225291893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112645931 + 112645932.

It is an arithmetic number, because the mean of its divisors is an integer number (112645932).

Almost surely, 2^225291863 is an apocalyptic number.

225291863 is a deficient number, since it is larger than the sum of its proper divisors (1).

225291863 is an equidigital number, since it uses as much as digits as its factorization.

225291863 is an evil number, because the sum of its binary digits is even.

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

The square root of 225291863 is about 15009.7256137479. The cubic root of 225291863 is about 608.4830740327.

The spelling of 225291863 in words is "two hundred twenty-five million, two hundred ninety-one thousand, eight hundred sixty-three".