225068921 has 8 divisors (see below), whose sum is σ = 280605504. Its totient is φ = 175378320.

The previous prime is 225068903. The next prime is 225068941. The reversal of 225068921 is 129860522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225068921 - 2¹⁰ = 225067897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225068941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1461410 + ... + 1461563.

It is an arithmetic number, because the mean of its divisors is an integer number (35075688).

Almost surely, 2^225068921 is an apocalyptic number.

It is an amenable number.

225068921 is a deficient number, since it is larger than the sum of its proper divisors (55536583).

225068921 is a wasteful number, since it uses less digits than its factorization.

225068921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922991.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 225068921 is about 15002.2971907638. The cubic root of 225068921 is about 608.2822956535.

The spelling of 225068921 in words is "two hundred twenty-five million, sixty-eight thousand, nine hundred twenty-one".