11825513 has 6 divisors (see below), whose sum is σ = 13756266. Its totient is φ = 10136112.

The previous prime is 11825497. The next prime is 11825531. The reversal of 11825513 is 31552811.

It is a happy number.

11825513 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 only one way, i.e., 11812969 + 12544 = 3437^2 + 112^2 .

It is not a de Polignac number, because 11825513 - 2⁴ = 11825497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11825573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120620 + ... + 120717.

It is an arithmetic number, because the mean of its divisors is an integer number (2292711).

Almost surely, 2^11825513 is an apocalyptic number.

It is an amenable number.

11825513 is a deficient number, since it is larger than the sum of its proper divisors (1930753).

11825513 is an equidigital number, since it uses as much as digits as its factorization.

11825513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241351 (or 241344 counting only the distinct ones).

The product of its digits is 1200, while the sum is 26.

The square root of 11825513 is about 3438.8243630636. The cubic root of 11825513 is about 227.8277721093.

The spelling of 11825513 in words is "eleven million, eight hundred twenty-five thousand, five hundred thirteen".