225494839 has 4 divisors (see below), whose sum is σ = 225552600. Its totient is φ = 225437080.

The previous prime is 225494821. The next prime is 225494849. The reversal of 225494839 is 938494522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225494839 - 2⁹ = 225494327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225494849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22564 + ... + 30985.

It is an arithmetic number, because the mean of its divisors is an integer number (56388150).

Almost surely, 2^225494839 is an apocalyptic number.

225494839 is a deficient number, since it is larger than the sum of its proper divisors (57761).

225494839 is an equidigital number, since it uses as much as digits as its factorization.

225494839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57760.

The product of its digits is 622080, while the sum is 46.

The square root of 225494839 is about 15016.4855741948. The cubic root of 225494839 is about 608.6657561561.

The spelling of 225494839 in words is "two hundred twenty-five million, four hundred ninety-four thousand, eight hundred thirty-nine".