11657255 has 4 divisors (see below), whose sum is σ = 13988712. Its totient is φ = 9325800.

The previous prime is 11657249. The next prime is 11657273. The reversal of 11657255 is 55275611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55275611 = 1669 ⋅33119.

It is not a de Polignac number, because 11657255 - 2¹⁶ = 11591719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1165721 + ... + 1165730.

It is an arithmetic number, because the mean of its divisors is an integer number (3497178).

Almost surely, 2^11657255 is an apocalyptic number.

11657255 is a deficient number, since it is larger than the sum of its proper divisors (2331457).

11657255 is an equidigital number, since it uses as much as digits as its factorization.

11657255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331456.

The product of its digits is 10500, while the sum is 32.

The square root of 11657255 is about 3414.2722504217. The cubic root of 11657255 is about 226.7420656987.

The spelling of 11657255 in words is "eleven million, six hundred fifty-seven thousand, two hundred fifty-five".