11250989 has 4 divisors (see below), whose sum is σ = 11270556. Its totient is φ = 11231424.

The previous prime is 11250973. The next prime is 11251013. The reversal of 11250989 is 98905211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5442889 + 5808100 = 2333^2 + 2410^2 .

It is a cyclic number.

It is not a de Polignac number, because 11250989 - 2⁴ = 11250973 is a prime.

It is a super-3 number, since 3×11250989³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11250919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8894 + ... + 10079.

It is an arithmetic number, because the mean of its divisors is an integer number (2817639).

Almost surely, 2^11250989 is an apocalyptic number.

It is an amenable number.

11250989 is a deficient number, since it is larger than the sum of its proper divisors (19567).

11250989 is an equidigital number, since it uses as much as digits as its factorization.

11250989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19566.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 11250989 is about 3354.2493944249. The cubic root of 11250989 is about 224.0768032233.

The spelling of 11250989 in words is "eleven million, two hundred fifty thousand, nine hundred eighty-nine".