225040923 has 20 divisors (see below), whose sum is σ = 344376648. Its totient is φ = 146365920.

The previous prime is 225040913. The next prime is 225040931. The reversal of 225040923 is 329040522.

225040923 is a `hidden beast` number, since 2 + 250 + 409 + 2 + 3 = 666.

It is not a de Polignac number, because 225040923 - 2⁶ = 225040859 is a prime.

It is a super-3 number, since 3×225040923³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (225040903) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 30561 + ... + 37202.

Almost surely, 2^225040923 is an apocalyptic number.

225040923 is a deficient number, since it is larger than the sum of its proper divisors (119335725).

225040923 is an equidigital number, since it uses as much as digits as its factorization.

225040923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67816 (or 67807 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 225040923 is about 15001.3640379800. The cubic root of 225040923 is about 608.2570716853.

The spelling of 225040923 in words is "two hundred twenty-five million, forty thousand, nine hundred twenty-three".