225211867 has 2 divisors, whose sum is σ = 225211868. Its totient is φ = 225211866.

The previous prime is 225211853. The next prime is 225211879. The reversal of 225211867 is 768112522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225211867 - 2⁷ = 225211739 is a prime.

It is equal to p_12393862 and since 225211867 and 12393862 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (225211667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112605933 + 112605934.

It is an arithmetic number, because the mean of its divisors is an integer number (112605934).

Almost surely, 2^225211867 is an apocalyptic number.

225211867 is a deficient number, since it is larger than the sum of its proper divisors (1).

225211867 is an equidigital number, since it uses as much as digits as its factorization.

225211867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 225211867 is about 15007.0605716110. The cubic root of 225211867 is about 608.4110460216.

The spelling of 225211867 in words is "two hundred twenty-five million, two hundred eleven thousand, eight hundred sixty-seven".