225955637 has 2 divisors, whose sum is σ = 225955638. Its totient is φ = 225955636.

The previous prime is 225955627. The next prime is 225955693. The reversal of 225955637 is 736559522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123520996 + 102434641 = 11114^2 + 10121^2 .

It is a cyclic number.

It is not a de Polignac number, because 225955637 - 2¹⁸ = 225693493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225955627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112977818 + 112977819.

It is an arithmetic number, because the mean of its divisors is an integer number (112977819).

Almost surely, 2^225955637 is an apocalyptic number.

It is an amenable number.

225955637 is a deficient number, since it is larger than the sum of its proper divisors (1).

225955637 is an equidigital number, since it uses as much as digits as its factorization.

225955637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 567000, while the sum is 44.

The square root of 225955637 is about 15031.8208145254. The cubic root of 225955637 is about 609.0800762548.

The spelling of 225955637 in words is "two hundred twenty-five million, nine hundred fifty-five thousand, six hundred thirty-seven".