11573525 has 12 divisors (see below), whose sum is σ = 14396772. Its totient is φ = 9229440.

The previous prime is 11573519. The next prime is 11573539. The reversal of 11573525 is 52537511.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1062961 + 10510564 = 1031^2 + 3242^2 .

It is not a de Polignac number, because 11573525 - 2⁸ = 11573269 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 10919 + ... + 11931.

It is an arithmetic number, because the mean of its divisors is an integer number (1199731).

Almost surely, 2^11573525 is an apocalyptic number.

It is an amenable number.

11573525 is a deficient number, since it is larger than the sum of its proper divisors (2823247).

11573525 is a wasteful number, since it uses less digits than its factorization.

11573525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480 (or 1475 counting only the distinct ones).

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

The square root of 11573525 is about 3401.9883891630. The cubic root of 11573525 is about 226.1978909938.

The spelling of 11573525 in words is "eleven million, five hundred seventy-three thousand, five hundred twenty-five".