225994579 has 2 divisors, whose sum is σ = 225994580. Its totient is φ = 225994578.

The previous prime is 225994547. The next prime is 225994621. The reversal of 225994579 is 975499522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225994579 - 2⁵ = 225994547 is a prime.

It is not a weakly prime, because it can be changed into another prime (225994529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112997289 + 112997290.

It is an arithmetic number, because the mean of its divisors is an integer number (112997290).

Almost surely, 2^225994579 is an apocalyptic number.

225994579 is a deficient number, since it is larger than the sum of its proper divisors (1).

225994579 is an equidigital number, since it uses as much as digits as its factorization.

225994579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 52.

The square root of 225994579 is about 15033.1160775137. The cubic root of 225994579 is about 609.1150645888.

The spelling of 225994579 in words is "two hundred twenty-five million, nine hundred ninety-four thousand, five hundred seventy-nine".