225921873 has 8 divisors (see below), whose sum is σ = 301362336. Its totient is φ = 150548000.

The previous prime is 225921863. The next prime is 225921877. The reversal of 225921873 is 378129522.

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 225921873 - 2⁵ = 225921841 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225921877) 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, 8103 + ... + 22748.

It is an arithmetic number, because the mean of its divisors is an integer number (37670292).

Almost surely, 2^225921873 is an apocalyptic number.

It is an amenable number.

225921873 is a deficient number, since it is larger than the sum of its proper divisors (75440463).

225921873 is a wasteful number, since it uses less digits than its factorization.

225921873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33295.

The product of its digits is 60480, while the sum is 39.

The square root of 225921873 is about 15030.6976883976. The cubic root of 225921873 is about 609.0497369599.

The spelling of 225921873 in words is "two hundred twenty-five million, nine hundred twenty-one thousand, eight hundred seventy-three".