11389825 has 18 divisors (see below), whose sum is σ = 14500374. Its totient is φ = 8873280.

The previous prime is 11389771. The next prime is 11389831. The reversal of 11389825 is 52898311.

11389825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 898704 + 10491121 = 948^2 + 3239^2 .

It is not a de Polignac number, because 11389825 - 2¹¹ = 11387777 is a prime.

It is a super-2 number, since 2×11389825² = 259456227061250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 144136 + ... + 144214.

Almost surely, 2^11389825 is an apocalyptic number.

It is an amenable number.

11389825 is a deficient number, since it is larger than the sum of its proper divisors (3110549).

11389825 is an frugal number, since it uses more digits than its factorization.

11389825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 157 counting only the distinct ones).

The product of its digits is 17280, while the sum is 37.

The square root of 11389825 is about 3374.8814794004. The cubic root of 11389825 is about 224.9947323870.

The spelling of 11389825 in words is "eleven million, three hundred eighty-nine thousand, eight hundred twenty-five".