11281250 has 42 divisors (see below), whose sum is σ = 22323933. Its totient is φ = 4275000.

The previous prime is 11281243. The next prime is 11281253. The reversal of 11281250 is 5218211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1923769 + 9357481 = 1387^2 + 3059^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2375.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11281253) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 593741 + ... + 593759.

Almost surely, 2^11281250 is an apocalyptic number.

11281250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11281250 is a deficient number, since it is larger than the sum of its proper divisors (11042683).

11281250 is an frugal number, since it uses more digits than its factorization.

11281250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 26 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 11281250 is about 3358.7572106361. The cubic root of 11281250 is about 224.2775179616.

Adding to 11281250 its reverse (5218211), we get a palindrome (16499461).

The spelling of 11281250 in words is "eleven million, two hundred eighty-one thousand, two hundred fifty".