225515699 has 2 divisors, whose sum is σ = 225515700. Its totient is φ = 225515698.

The previous prime is 225515677. The next prime is 225515711. The reversal of 225515699 is 996515522.

225515699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225515699 is a prime.

It is not a weakly prime, because it can be changed into another prime (225515639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112757849 + 112757850.

It is an arithmetic number, because the mean of its divisors is an integer number (112757850).

Almost surely, 2^225515699 is an apocalyptic number.

225515699 is a deficient number, since it is larger than the sum of its proper divisors (1).

225515699 is an equidigital number, since it uses as much as digits as its factorization.

225515699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243000, while the sum is 44.

The square root of 225515699 is about 15017.1801281066. The cubic root of 225515699 is about 608.6845243258.

The spelling of 225515699 in words is "two hundred twenty-five million, five hundred fifteen thousand, six hundred ninety-nine".