225218767 has 2 divisors, whose sum is σ = 225218768. Its totient is φ = 225218766.

The previous prime is 225218729. The next prime is 225218801. The reversal of 225218767 is 767812522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225218767 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 (225218467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112609383 + 112609384.

It is an arithmetic number, because the mean of its divisors is an integer number (112609384).

Almost surely, 2^225218767 is an apocalyptic number.

225218767 is a deficient number, since it is larger than the sum of its proper divisors (1).

225218767 is an equidigital number, since it uses as much as digits as its factorization.

225218767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 40.

The square root of 225218767 is about 15007.2904616390. The cubic root of 225218767 is about 608.4172594203.

The spelling of 225218767 in words is "two hundred twenty-five million, two hundred eighteen thousand, seven hundred sixty-seven".