11528257 has 16 divisors (see below), whose sum is σ = 13039488. Its totient is φ = 10120320.

The previous prime is 11528213. The next prime is 11528263. The reversal of 11528257 is 75282511.

11528257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11528257 - 2¹¹ = 11526209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11528857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22668 + ... + 23170.

It is an arithmetic number, because the mean of its divisors is an integer number (814968).

Almost surely, 2^11528257 is an apocalyptic number.

It is an amenable number.

11528257 is a deficient number, since it is larger than the sum of its proper divisors (1511231).

11528257 is a wasteful number, since it uses less digits than its factorization.

11528257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its digits is 5600, while the sum is 31.

The square root of 11528257 is about 3395.3287027915. The cubic root of 11528257 is about 225.9025933120.

It can be divided in two parts, 1152 and 8257, that added together give a square (9409 = 97²).

The spelling of 11528257 in words is "eleven million, five hundred twenty-eight thousand, two hundred fifty-seven".