225731630767 has 4 divisors (see below), whose sum is σ = 235546049520. Its totient is φ = 215917212016.

The previous prime is 225731630749. The next prime is 225731630843. The reversal of 225731630767 is 767036137522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225731630767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225731630767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225731637767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4907209342 + ... + 4907209387.

It is an arithmetic number, because the mean of its divisors is an integer number (58886512380).

Almost surely, 2^225731630767 is an apocalyptic number.

225731630767 is a deficient number, since it is larger than the sum of its proper divisors (9814418753).

225731630767 is an equidigital number, since it uses as much as digits as its factorization.

225731630767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9814418752.

The product of its (nonzero) digits is 2222640, while the sum is 49.

The spelling of 225731630767 in words is "two hundred twenty-five billion, seven hundred thirty-one million, six hundred thirty thousand, seven hundred sixty-seven".