225565733 has 2 divisors, whose sum is σ = 225565734. Its totient is φ = 225565732.

The previous prime is 225565699. The next prime is 225565759. The reversal of 225565733 is 337565522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220908769 + 4656964 = 14863^2 + 2158^2 .

It is a cyclic number.

It is not a de Polignac number, because 225565733 - 2²² = 221371429 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225561733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112782866 + 112782867.

It is an arithmetic number, because the mean of its divisors is an integer number (112782867).

Almost surely, 2^225565733 is an apocalyptic number.

It is an amenable number.

225565733 is a deficient number, since it is larger than the sum of its proper divisors (1).

225565733 is an equidigital number, since it uses as much as digits as its factorization.

225565733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 38.

The square root of 225565733 is about 15018.8459277003. The cubic root of 225565733 is about 608.7295362246.

The spelling of 225565733 in words is "two hundred twenty-five million, five hundred sixty-five thousand, seven hundred thirty-three".