11525 has 6 divisors (see below), whose sum is σ = 14322. Its totient is φ = 9200.

The previous prime is 11519. The next prime is 11527. The reversal of 11525 is 52511.

11525 = T₁₇ + T₁₈ + ... + T₄₁.

It can be written as a sum of positive squares in 3 ways, for example, as 289 + 11236 = 17^2 + 106^2 .

It is not a de Polignac number, because 11525 - 2¹⁰ = 10501 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11527) 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, 206 + ... + 255.

It is an arithmetic number, because the mean of its divisors is an integer number (2387).

2¹¹⁵²⁵ is an apocalyptic number.

It is an amenable number.

11525 is a deficient number, since it is larger than the sum of its proper divisors (2797).

11525 is an equidigital number, since it uses as much as digits as its factorization.

11525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 466 counting only the distinct ones).

The product of its digits is 50, while the sum is 14.

The square root of 11525 is about 107.3545527679. The cubic root of 11525 is about 22.5881317067.

Subtracting from 11525 its sum of digits (14), we obtain a palindrome (11511).

It can be divided in two parts, 11 and 525, that multiplied together give a palindrome (5775).

The spelling of 11525 in words is "eleven thousand, five hundred twenty-five".