225916490 has 16 divisors (see below), whose sum is σ = 409853952. Its totient is φ = 89654544.

The previous prime is 225916459. The next prime is 225916543. The reversal of 225916490 is 94619522.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87674 + ... + 90213.

It is an arithmetic number, because the mean of its divisors is an integer number (25615872).

Almost surely, 2^225916490 is an apocalyptic number.

225916490 is a deficient number, since it is larger than the sum of its proper divisors (183937462).

225916490 is a wasteful number, since it uses less digits than its factorization.

225916490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178021.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 225916490 is about 15030.5186204602. The cubic root of 225916490 is about 609.0448996818.

The spelling of 225916490 in words is "two hundred twenty-five million, nine hundred sixteen thousand, four hundred ninety".