225155999 has 2 divisors, whose sum is σ = 225156000. Its totient is φ = 225155998.

The previous prime is 225155951. The next prime is 225156047. The reversal of 225155999 is 999551522.

It is a balanced prime because it is at equal distance from previous prime (225155951) and next prime (225156047).

It is a cyclic number.

It is not a de Polignac number, because 225155999 - 2¹² = 225151903 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225155929) 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, 112577999 + 112578000.

It is an arithmetic number, because the mean of its divisors is an integer number (112578000).

Almost surely, 2^225155999 is an apocalyptic number.

225155999 is a deficient number, since it is larger than the sum of its proper divisors (1).

225155999 is an equidigital number, since it uses as much as digits as its factorization.

225155999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 364500, while the sum is 47.

The square root of 225155999 is about 15005.1990656572. The cubic root of 225155999 is about 608.3607326288.

The spelling of 225155999 in words is "two hundred twenty-five million, one hundred fifty-five thousand, nine hundred ninety-nine".