225318727 has 4 divisors (see below), whose sum is σ = 226811056. Its totient is φ = 223826400.

The previous prime is 225318721. The next prime is 225318733. The reversal of 225318727 is 727813522.

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

It is an interprime number because it is at equal distance from previous prime (225318721) and next prime (225318733).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225318727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225318721) 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, 745938 + ... + 746239.

It is an arithmetic number, because the mean of its divisors is an integer number (56702764).

Almost surely, 2^225318727 is an apocalyptic number.

225318727 is a deficient number, since it is larger than the sum of its proper divisors (1492329).

225318727 is a wasteful number, since it uses less digits than its factorization.

225318727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492328.

The product of its digits is 47040, while the sum is 37.

The square root of 225318727 is about 15010.6204735181. The cubic root of 225318727 is about 608.5072584239.

The spelling of 225318727 in words is "two hundred twenty-five million, three hundred eighteen thousand, seven hundred twenty-seven".