225775961 has 8 divisors (see below), whose sum is σ = 233166024. Its totient is φ = 218453760.

The previous prime is 225775937. The next prime is 225775967. The reversal of 225775961 is 169577522.

225775961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1345600 + 224430361 = 1160^2 + 14981^2 .

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 225775961 - 2²⁶ = 158667097 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 (225775967) 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, 10160 + ... + 23553.

It is an arithmetic number, because the mean of its divisors is an integer number (29145753).

Almost surely, 2^225775961 is an apocalyptic number.

It is an amenable number.

225775961 is a deficient number, since it is larger than the sum of its proper divisors (7390063).

225775961 is a wasteful number, since it uses less digits than its factorization.

225775961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33931.

The product of its digits is 264600, while the sum is 44.

The square root of 225775961 is about 15025.8431044651. The cubic root of 225775961 is about 608.9185901426.

The spelling of 225775961 in words is "two hundred twenty-five million, seven hundred seventy-five thousand, nine hundred sixty-one".