225933619 has 2 divisors, whose sum is σ = 225933620. Its totient is φ = 225933618.

The previous prime is 225933563. The next prime is 225933637. The reversal of 225933619 is 916339522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225933619 is a prime.

It is a super-2 number, since 2×225933619² = 102092000388874322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (225934619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112966809 + 112966810.

It is an arithmetic number, because the mean of its divisors is an integer number (112966810).

Almost surely, 2^225933619 is an apocalyptic number.

225933619 is a deficient number, since it is larger than the sum of its proper divisors (1).

225933619 is an equidigital number, since it uses as much as digits as its factorization.

225933619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 40.

The square root of 225933619 is about 15031.0884170109. The cubic root of 225933619 is about 609.0602918981.

The spelling of 225933619 in words is "two hundred twenty-five million, nine hundred thirty-three thousand, six hundred nineteen".