225716047 has 2 divisors, whose sum is σ = 225716048. Its totient is φ = 225716046.

The previous prime is 225716039. The next prime is 225716069. The reversal of 225716047 is 740617522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225716047 - 2³ = 225716039 is a prime.

It is equal to p_12419926 and since 225716047 and 12419926 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225716027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112858023 + 112858024.

It is an arithmetic number, because the mean of its divisors is an integer number (112858024).

Almost surely, 2^225716047 is an apocalyptic number.

225716047 is a deficient number, since it is larger than the sum of its proper divisors (1).

225716047 is an equidigital number, since it uses as much as digits as its factorization.

225716047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 225716047 is about 15023.8492737381. The cubic root of 225716047 is about 608.8647226185.

The spelling of 225716047 in words is "two hundred twenty-five million, seven hundred sixteen thousand, forty-seven".