11528518 has 4 divisors (see below), whose sum is σ = 17292780. Its totient is φ = 5764258.

The previous prime is 11528479. The next prime is 11528519. The reversal of 11528518 is 81582511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81582511 = 313 ⋅260647.

It is a self number, because there is not a number n which added to its sum of digits gives 11528518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11528519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2882128 + ... + 2882131.

It is an arithmetic number, because the mean of its divisors is an integer number (4323195).

Almost surely, 2^11528518 is an apocalyptic number.

11528518 is a deficient number, since it is larger than the sum of its proper divisors (5764262).

11528518 is an equidigital number, since it uses as much as digits as its factorization.

11528518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5764261.

The product of its digits is 3200, while the sum is 31.

The square root of 11528518 is about 3395.3671377334. The cubic root of 11528518 is about 225.9042981125.

It can be divided in two parts, 11 and 528518, that added together give a square (528529 = 727²).

The spelling of 11528518 in words is "eleven million, five hundred twenty-eight thousand, five hundred eighteen".