11087257 has 4 divisors (see below), whose sum is σ = 11099520. Its totient is φ = 11074996.

The previous prime is 11087207. The next prime is 11087267. The reversal of 11087257 is 75278011.

It is a happy number.

11087257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11087257 - 2⁷ = 11087129 is a prime.

It is a super-4 number, since 4×11087257⁴ (a number of 29 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11087207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4657 + ... + 6622.

It is an arithmetic number, because the mean of its divisors is an integer number (2774880).

Almost surely, 2^11087257 is an apocalyptic number.

It is an amenable number.

11087257 is a deficient number, since it is larger than the sum of its proper divisors (12263).

11087257 is an equidigital number, since it uses as much as digits as its factorization.

11087257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12262.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 11087257 is about 3329.7532941646. The cubic root of 11087257 is about 222.9845150019.

The spelling of 11087257 in words is "eleven million, eighty-seven thousand, two hundred fifty-seven".