225257746 has 16 divisors (see below), whose sum is σ = 394373376. Its totient is φ = 94484736.

The previous prime is 225257743. The next prime is 225257789. The reversal of 225257746 is 647752522.

It is a junction number, because it is equal to n+sod(n) for n = 225257699 and 225257708.

It is not an unprimeable number, because it can be changed into a prime (225257743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170511 + ... + 171826.

It is an arithmetic number, because the mean of its divisors is an integer number (24648336).

Almost surely, 2^225257746 is an apocalyptic number.

225257746 is a deficient number, since it is larger than the sum of its proper divisors (169115630).

225257746 is a wasteful number, since it uses less digits than its factorization.

225257746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342393.

The product of its digits is 235200, while the sum is 40.

The square root of 225257746 is about 15008.5890742601. The cubic root of 225257746 is about 608.4523573367.

The spelling of 225257746 in words is "two hundred twenty-five million, two hundred fifty-seven thousand, seven hundred forty-six".