225983551 has 2 divisors, whose sum is σ = 225983552. Its totient is φ = 225983550.

The previous prime is 225983509. The next prime is 225983581. The reversal of 225983551 is 155389522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225983551 - 2¹³ = 225975359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225983581) 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, 112991775 + 112991776.

It is an arithmetic number, because the mean of its divisors is an integer number (112991776).

Almost surely, 2^225983551 is an apocalyptic number.

225983551 is a deficient number, since it is larger than the sum of its proper divisors (1).

225983551 is an equidigital number, since it uses as much as digits as its factorization.

225983551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 40.

The square root of 225983551 is about 15032.7492828158. The cubic root of 225983551 is about 609.1051566370.

The spelling of 225983551 in words is "two hundred twenty-five million, nine hundred eighty-three thousand, five hundred fifty-one".