225111503 has 2 divisors, whose sum is σ = 225111504. Its totient is φ = 225111502.

The previous prime is 225111479. The next prime is 225111539. The reversal of 225111503 is 305111522.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225111503 - 2¹⁴ = 225095119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225111203) 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, 112555751 + 112555752.

It is an arithmetic number, because the mean of its divisors is an integer number (112555752).

Almost surely, 2^225111503 is an apocalyptic number.

225111503 is a deficient number, since it is larger than the sum of its proper divisors (1).

225111503 is an equidigital number, since it uses as much as digits as its factorization.

225111503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 225111503 is about 15003.7163063022. The cubic root of 225111503 is about 608.3206546345.

The spelling of 225111503 in words is "two hundred twenty-five million, one hundred eleven thousand, five hundred three".