11305530 has 24 divisors (see below), whose sum is σ = 29394612. Its totient is φ = 3014784.

The previous prime is 11305519. The next prime is 11305549. The reversal of 11305530 is 3550311.

It is a happy number.

11305530 is a `hidden beast` number, since 1 + 130 + 5 + 530 = 666.

11305530 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 2 ways, for example, as 10093329 + 1212201 = 3177^2 + 1101^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62719 + ... + 62898.

Almost surely, 2^11305530 is an apocalyptic number.

11305530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11305530 is an abundant number, since it is smaller than the sum of its proper divisors (18089082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11305530 is a wasteful number, since it uses less digits than its factorization.

11305530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125630 (or 125627 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 11305530 is about 3362.3697000776. The cubic root of 11305530 is about 224.4383026309.

Adding to 11305530 its reverse (3550311), we get a palindrome (14855841).

The spelling of 11305530 in words is "eleven million, three hundred five thousand, five hundred thirty".