225212892 has 24 divisors (see below), whose sum is σ = 542449152. Its totient is φ = 72649200.

The previous prime is 225212873. The next prime is 225212893. The reversal of 225212892 is 298212522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225212893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302334 + ... + 303077.

It is an arithmetic number, because the mean of its divisors is an integer number (22602048).

Almost surely, 2^225212892 is an apocalyptic number.

It is an amenable number.

225212892 is an abundant number, since it is smaller than the sum of its proper divisors (317236260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225212892 is a wasteful number, since it uses less digits than its factorization.

225212892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605449 (or 605447 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 225212892 is about 15007.0947221639. The cubic root of 225212892 is about 608.4119690346.

The spelling of 225212892 in words is "two hundred twenty-five million, two hundred twelve thousand, eight hundred ninety-two".