225251539 has 2 divisors, whose sum is σ = 225251540. Its totient is φ = 225251538.

The previous prime is 225251531. The next prime is 225251563. The reversal of 225251539 is 935152522.

225251539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225251539 - 2³ = 225251531 is a prime.

It is not a weakly prime, because it can be changed into another prime (225251531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112625769 + 112625770.

It is an arithmetic number, because the mean of its divisors is an integer number (112625770).

Almost surely, 2^225251539 is an apocalyptic number.

225251539 is a deficient number, since it is larger than the sum of its proper divisors (1).

225251539 is an equidigital number, since it uses as much as digits as its factorization.

225251539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 34.

The square root of 225251539 is about 15008.3822912398. The cubic root of 225251539 is about 608.4467686299.

The spelling of 225251539 in words is "two hundred twenty-five million, two hundred fifty-one thousand, five hundred thirty-nine".