225954787 has 2 divisors, whose sum is σ = 225954788. Its totient is φ = 225954786.

The previous prime is 225954733. The next prime is 225954811. The reversal of 225954787 is 787459522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225954787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225954787.

It is not a weakly prime, because it can be changed into another prime (225954587) 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, 112977393 + 112977394.

It is an arithmetic number, because the mean of its divisors is an integer number (112977394).

Almost surely, 2^225954787 is an apocalyptic number.

225954787 is a deficient number, since it is larger than the sum of its proper divisors (1).

225954787 is an equidigital number, since it uses as much as digits as its factorization.

225954787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1411200, while the sum is 49.

The square root of 225954787 is about 15031.7925411443. The cubic root of 225954787 is about 609.0793125080.

The spelling of 225954787 in words is "two hundred twenty-five million, nine hundred fifty-four thousand, seven hundred eighty-seven".