225111389 has 2 divisors, whose sum is σ = 225111390. Its totient is φ = 225111388.

The previous prime is 225111347. The next prime is 225111391. The reversal of 225111389 is 983111522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196840900 + 28270489 = 14030^2 + 5317^2 .

It is a cyclic number.

It is not a de Polignac number, because 225111389 - 2¹² = 225107293 is a prime.

It is a Sophie Germain prime.

Together with 225111391, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225191389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112555694 + 112555695.

It is an arithmetic number, because the mean of its divisors is an integer number (112555695).

Almost surely, 2^225111389 is an apocalyptic number.

It is an amenable number.

225111389 is a deficient number, since it is larger than the sum of its proper divisors (1).

225111389 is an equidigital number, since it uses as much as digits as its factorization.

225111389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 32.

The square root of 225111389 is about 15003.7125072430. The cubic root of 225111389 is about 608.3205519468.

The spelling of 225111389 in words is "two hundred twenty-five million, one hundred eleven thousand, three hundred eighty-nine".