225267919 has 2 divisors, whose sum is σ = 225267920. Its totient is φ = 225267918.

The previous prime is 225267907. The next prime is 225267929. The reversal of 225267919 is 919762522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225267919 - 2²⁷ = 91050191 is a prime.

It is a super-2 number, since 2×225267919² = 101491270661181122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225267929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112633959 + 112633960.

It is an arithmetic number, because the mean of its divisors is an integer number (112633960).

Almost surely, 2^225267919 is an apocalyptic number.

225267919 is a deficient number, since it is larger than the sum of its proper divisors (1).

225267919 is an equidigital number, since it uses as much as digits as its factorization.

225267919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 225267919 is about 15008.9279763746. The cubic root of 225267919 is about 608.4615167592.

The spelling of 225267919 in words is "two hundred twenty-five million, two hundred sixty-seven thousand, nine hundred nineteen".