11563525 has 6 divisors (see below), whose sum is σ = 14338802. Its totient is φ = 9250800.

The previous prime is 11563523. The next prime is 11563561. The reversal of 11563525 is 52536511.

It can be written as a sum of positive squares in 3 ways, for example, as 51076 + 11512449 = 226^2 + 3393^2 .

It is not a de Polignac number, because 11563525 - 2¹ = 11563523 is a prime.

It is a super-2 number, since 2×11563525² = 267430220851250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11563493 and 11563502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11563523) 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, 231246 + ... + 231295.

Almost surely, 2^11563525 is an apocalyptic number.

It is an amenable number.

11563525 is a deficient number, since it is larger than the sum of its proper divisors (2775277).

11563525 is an equidigital number, since it uses as much as digits as its factorization.

11563525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462551 (or 462546 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 11563525 is about 3400.5183428413. The cubic root of 11563525 is about 226.1327241380.

The spelling of 11563525 in words is "eleven million, five hundred sixty-three thousand, five hundred twenty-five".