225039799 has 2 divisors, whose sum is σ = 225039800. Its totient is φ = 225039798.

The previous prime is 225039733. The next prime is 225039803. The reversal of 225039799 is 997930522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225039799 - 2⁷ = 225039671 is a prime.

It is a super-2 number, since 2×225039799² = 101285822267920802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225039719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112519899 + 112519900.

It is an arithmetic number, because the mean of its divisors is an integer number (112519900).

Almost surely, 2^225039799 is an apocalyptic number.

225039799 is a deficient number, since it is larger than the sum of its proper divisors (1).

225039799 is an equidigital number, since it uses as much as digits as its factorization.

225039799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 225039799 is about 15001.3265746733. The cubic root of 225039799 is about 608.2560590071.

The spelling of 225039799 in words is "two hundred twenty-five million, thirty-nine thousand, seven hundred ninety-nine".