225753491 has 2 divisors, whose sum is σ = 225753492. Its totient is φ = 225753490.

The previous prime is 225753469. The next prime is 225753509. The reversal of 225753491 is 194357522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225753491 - 2¹⁴ = 225737107 is a prime.

It is not a weakly prime, because it can be changed into another prime (225753431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112876745 + 112876746.

It is an arithmetic number, because the mean of its divisors is an integer number (112876746).

Almost surely, 2^225753491 is an apocalyptic number.

225753491 is a deficient number, since it is larger than the sum of its proper divisors (1).

225753491 is an equidigital number, since it uses as much as digits as its factorization.

225753491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 225753491 is about 15025.0953740733. The cubic root of 225753491 is about 608.8983889151.

The spelling of 225753491 in words is "two hundred twenty-five million, seven hundred fifty-three thousand, four hundred ninety-one".