225791793 has 10 divisors (see below), whose sum is σ = 337294034. Its totient is φ = 150527808.

The previous prime is 225791777. The next prime is 225791803. The reversal of 225791793 is 397197522.

225791793 is a `hidden beast` number, since 2 + 2 + 579 + 1 + 79 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 225360144 + 431649 = 15012^2 + 657^2 .

It is not a de Polignac number, because 225791793 - 2⁴ = 225791777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225791743) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1393696 + ... + 1393857.

Almost surely, 2^225791793 is an apocalyptic number.

It is an amenable number.

225791793 is a deficient number, since it is larger than the sum of its proper divisors (111502241).

225791793 is an equidigital number, since it uses as much as digits as its factorization.

225791793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787565 (or 2787556 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 225791793 is about 15026.3699209090. The cubic root of 225791793 is about 608.9328227971.

The spelling of 225791793 in words is "two hundred twenty-five million, seven hundred ninety-one thousand, seven hundred ninety-three".