11506525 has 12 divisors (see below), whose sum is σ = 14368500. Its totient is φ = 9140480.

The previous prime is 11506511. The next prime is 11506531. The reversal of 11506525 is 52560511.

It can be written as a sum of positive squares in 6 ways, for example, as 142884 + 11363641 = 378^2 + 3371^2 .

It is not a de Polignac number, because 11506525 - 2²¹ = 9409373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 11506525.

It is a congruent number.

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, 2181 + ... + 5269.

It is an arithmetic number, because the mean of its divisors is an integer number (1197375).

Almost surely, 2^11506525 is an apocalyptic number.

It is an amenable number.

11506525 is a deficient number, since it is larger than the sum of its proper divisors (2861975).

11506525 is a wasteful number, since it uses less digits than its factorization.

11506525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248 (or 3243 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 11506525 is about 3392.1269138993. The cubic root of 11506525 is about 225.7605538215.

The spelling of 11506525 in words is "eleven million, five hundred six thousand, five hundred twenty-five".