11538225 has 36 divisors (see below), whose sum is σ = 21762000. Its totient is φ = 5827680.

The previous prime is 11538221. The next prime is 11538229. The reversal of 11538225 is 52283511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11538221) and next prime (11538229).

It is not a de Polignac number, because 11538225 - 2² = 11538221 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11538221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2926 + ... + 5624.

It is an arithmetic number, because the mean of its divisors is an integer number (604500).

Almost surely, 2^11538225 is an apocalyptic number.

11538225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11538225 is a deficient number, since it is larger than the sum of its proper divisors (10223775).

11538225 is a wasteful number, since it uses less digits than its factorization.

11538225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734 (or 2726 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 11538225 is about 3396.7962847365. The cubic root of 11538225 is about 225.9676840524.

The spelling of 11538225 in words is "eleven million, five hundred thirty-eight thousand, two hundred twenty-five".