225497387 has 2 divisors, whose sum is σ = 225497388. Its totient is φ = 225497386.

The previous prime is 225497383. The next prime is 225497443. The reversal of 225497387 is 783794522.

It is a happy number.

225497387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225497387 - 2² = 225497383 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225497381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112748693 + 112748694.

It is an arithmetic number, because the mean of its divisors is an integer number (112748694).

Almost surely, 2^225497387 is an apocalyptic number.

225497387 is a deficient number, since it is larger than the sum of its proper divisors (1).

225497387 is an equidigital number, since it uses as much as digits as its factorization.

225497387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 225497387 is about 15016.5704140459. The cubic root of 225497387 is about 608.6680487060.

The spelling of 225497387 in words is "two hundred twenty-five million, four hundred ninety-seven thousand, three hundred eighty-seven".