225504151 has 2 divisors, whose sum is σ = 225504152. Its totient is φ = 225504150.

The previous prime is 225504131. The next prime is 225504161. The reversal of 225504151 is 151405522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225504151 - 2⁹ = 225503639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225504131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112752075 + 112752076.

It is an arithmetic number, because the mean of its divisors is an integer number (112752076).

Almost surely, 2^225504151 is an apocalyptic number.

225504151 is a deficient number, since it is larger than the sum of its proper divisors (1).

225504151 is an equidigital number, since it uses as much as digits as its factorization.

225504151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 225504151 is about 15016.7956302268. The cubic root of 225504151 is about 608.6741344964.

Adding to 225504151 its reverse (151405522), we get a palindrome (376909673).

The spelling of 225504151 in words is "two hundred twenty-five million, five hundred four thousand, one hundred fifty-one".