225240047 has 2 divisors, whose sum is σ = 225240048. Its totient is φ = 225240046.

The previous prime is 225240031. The next prime is 225240061. The reversal of 225240047 is 740042522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225240047 - 2⁴ = 225240031 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 225239998 and 225240025.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225240007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112620023 + 112620024.

It is an arithmetic number, because the mean of its divisors is an integer number (112620024).

Almost surely, 2^225240047 is an apocalyptic number.

225240047 is a deficient number, since it is larger than the sum of its proper divisors (1).

225240047 is an equidigital number, since it uses as much as digits as its factorization.

225240047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 225240047 is about 15007.9994336354. Note that the first 3 decimals coincide. The cubic root of 225240047 is about 608.4364211028.

Adding to 225240047 its reverse (740042522), we get a palindrome (965282569).

The spelling of 225240047 in words is "two hundred twenty-five million, two hundred forty thousand, forty-seven".