225545199 has 16 divisors (see below), whose sum is σ = 342330624. Its totient is φ = 130750400.

The previous prime is 225545197. The next prime is 225545213. The reversal of 225545199 is 991545522.

It is a happy number.

It is not a de Polignac number, because 225545199 - 2¹ = 225545197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225545199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225545197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147822 + ... + 149339.

It is an arithmetic number, because the mean of its divisors is an integer number (21395664).

Almost surely, 2^225545199 is an apocalyptic number.

225545199 is a deficient number, since it is larger than the sum of its proper divisors (116785425).

225545199 is a wasteful number, since it uses less digits than its factorization.

225545199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297198.

The product of its digits is 162000, while the sum is 42.

The square root of 225545199 is about 15018.1623043567. The cubic root of 225545199 is about 608.7110641050.

The spelling of 225545199 in words is "two hundred twenty-five million, five hundred forty-five thousand, one hundred ninety-nine".