225231875 has 30 divisors (see below), whose sum is σ = 308741796. Its totient is φ = 162900000.

The previous prime is 225231869. The next prime is 225231883. The reversal of 225231875 is 578132522.

It is not a de Polignac number, because 225231875 - 2⁴ = 225231859 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1244285 + ... + 1244465.

Almost surely, 2^225231875 is an apocalyptic number.

225231875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

225231875 is a deficient number, since it is larger than the sum of its proper divisors (83509921).

225231875 is an frugal number, since it uses more digits than its factorization.

225231875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 197 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 225231875 is about 15007.7271763582. The cubic root of 225231875 is about 608.4290627273.

The spelling of 225231875 in words is "two hundred twenty-five million, two hundred thirty-one thousand, eight hundred seventy-five".