225975973 has 4 divisors (see below), whose sum is σ = 226545580. Its totient is φ = 225406368.

The previous prime is 225975961. The next prime is 225975977. The reversal of 225975973 is 379579522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 173659684 + 52316289 = 13178^2 + 7233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225975973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225975977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284208 + ... + 285001.

It is an arithmetic number, because the mean of its divisors is an integer number (56636395).

Almost surely, 2^225975973 is an apocalyptic number.

It is an amenable number.

225975973 is a deficient number, since it is larger than the sum of its proper divisors (569607).

225975973 is an equidigital number, since it uses as much as digits as its factorization.

225975973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569606.

The product of its digits is 1190700, while the sum is 49.

The square root of 225975973 is about 15032.4972309992. The cubic root of 225975973 is about 609.0983481024.

The spelling of 225975973 in words is "two hundred twenty-five million, nine hundred seventy-five thousand, nine hundred seventy-three".