225745589 has 2 divisors, whose sum is σ = 225745590. Its totient is φ = 225745588.

The previous prime is 225745577. The next prime is 225745613. The reversal of 225745589 is 985547522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115390564 + 110355025 = 10742^2 + 10505^2 .

It is a cyclic number.

It is not a de Polignac number, because 225745589 - 2⁴ = 225745573 is a prime.

It is a super-2 number, since 2×225745589² = 101922141905913842, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225745519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112872794 + 112872795.

It is an arithmetic number, because the mean of its divisors is an integer number (112872795).

Almost surely, 2^225745589 is an apocalyptic number.

It is an amenable number.

225745589 is a deficient number, since it is larger than the sum of its proper divisors (1).

225745589 is an equidigital number, since it uses as much as digits as its factorization.

225745589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008000, while the sum is 47.

The square root of 225745589 is about 15024.8324117110. The cubic root of 225745589 is about 608.8912844532.

The spelling of 225745589 in words is "two hundred twenty-five million, seven hundred forty-five thousand, five hundred eighty-nine".