225243998 has 16 divisors (see below), whose sum is σ = 386325504. Its totient is φ = 96484920.

The previous prime is 225243979. The next prime is 225244001. The reversal of 225243998 is 899342522.

It is a congruent 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, 50603 + ... + 54873.

It is an arithmetic number, because the mean of its divisors is an integer number (24145344).

Almost surely, 2^225243998 is an apocalyptic number.

225243998 is a deficient number, since it is larger than the sum of its proper divisors (161081506).

225243998 is a wasteful number, since it uses less digits than its factorization.

225243998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8047.

The product of its digits is 311040, while the sum is 44.

The square root of 225243998 is about 15008.1310628606. The cubic root of 225243998 is about 608.4399786677.

The spelling of 225243998 in words is "two hundred twenty-five million, two hundred forty-three thousand, nine hundred ninety-eight".