1111255589 has 2 divisors, whose sum is σ = 1111255590. Its totient is φ = 1111255588.

The previous prime is 1111255549. The next prime is 1111255627. The reversal of 1111255589 is 9855521111.

It is an a-pointer prime, because the next prime (1111255627) can be obtained adding 1111255589 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1105030564 + 6225025 = 33242^2 + 2495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111255589 - 2²⁴ = 1094478373 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111255529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555627794 + 555627795.

It is an arithmetic number, because the mean of its divisors is an integer number (555627795).

Almost surely, 2^1111255589 is an apocalyptic number.

It is an amenable number.

1111255589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111255589 is an equidigital number, since it uses as much as digits as its factorization.

1111255589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 38.

The square root of 1111255589 is about 33335.5004312220. The cubic root of 1111255589 is about 1035.7890593449.

The spelling of 1111255589 in words is "one billion, one hundred eleven million, two hundred fifty-five thousand, five hundred eighty-nine".