225190287 has 28 divisors (see below), whose sum is σ = 385872720. Its totient is φ = 128677248.

The previous prime is 225190247. The next prime is 225190319. The reversal of 225190287 is 782091522.

225190287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225190287 - 2¹² = 225186191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225190237) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 16962 + ... + 27167.

Almost surely, 2^225190287 is an apocalyptic number.

225190287 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

225190287 is a deficient number, since it is larger than the sum of its proper divisors (160682433).

225190287 is an frugal number, since it uses more digits than its factorization.

225190287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44154 (or 44139 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 225190287 is about 15006.3415594874. The cubic root of 225190287 is about 608.3916125730.

The spelling of 225190287 in words is "two hundred twenty-five million, one hundred ninety thousand, two hundred eighty-seven".