11525573 has 4 divisors (see below), whose sum is σ = 11536428. Its totient is φ = 11514720.

The previous prime is 11525561. The next prime is 11525581. The reversal of 11525573 is 37552511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1803649 + 9721924 = 1343^2 + 3118^2 .

It is a cyclic number.

It is not a de Polignac number, because 11525573 - 2⁶ = 11525509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11525543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3638 + ... + 6023.

It is an arithmetic number, because the mean of its divisors is an integer number (2884107).

Almost surely, 2^11525573 is an apocalyptic number.

It is an amenable number.

11525573 is a deficient number, since it is larger than the sum of its proper divisors (10855).

11525573 is an equidigital number, since it uses as much as digits as its factorization.

11525573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10854.

The product of its digits is 5250, while the sum is 29.

The square root of 11525573 is about 3394.9334308643. The cubic root of 11525573 is about 225.8850604615.

The spelling of 11525573 in words is "eleven million, five hundred twenty-five thousand, five hundred seventy-three".