225165851 has 2 divisors, whose sum is σ = 225165852. Its totient is φ = 225165850.

The previous prime is 225165797. The next prime is 225165859. The reversal of 225165851 is 158561522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225165851 - 2¹⁴ = 225149467 is a prime.

It is a super-3 number, since 3×225165851³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (225165859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112582925 + 112582926.

It is an arithmetic number, because the mean of its divisors is an integer number (112582926).

Almost surely, 2^225165851 is an apocalyptic number.

225165851 is a deficient number, since it is larger than the sum of its proper divisors (1).

225165851 is an equidigital number, since it uses as much as digits as its factorization.

225165851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24000, while the sum is 35.

The square root of 225165851 is about 15005.5273482807. The cubic root of 225165851 is about 608.3696057103.

The spelling of 225165851 in words is "two hundred twenty-five million, one hundred sixty-five thousand, eight hundred fifty-one".