11555255 has 4 divisors (see below), whose sum is σ = 13866312. Its totient is φ = 9244200.

The previous prime is 11555213. The next prime is 11555263. The reversal of 11555255 is 55255511.

11555255 is digitally balanced in base 2 and base 3, because in such bases 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 an emirpimes, since its reverse is a distinct semiprime: 55255511 = 263 ⋅210097.

It is not a de Polignac number, because 11555255 - 2⁸ = 11554999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1155521 + ... + 1155530.

It is an arithmetic number, because the mean of its divisors is an integer number (3466578).

Almost surely, 2^11555255 is an apocalyptic number.

11555255 is a deficient number, since it is larger than the sum of its proper divisors (2311057).

11555255 is an equidigital number, since it uses as much as digits as its factorization.

11555255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311056.

The product of its digits is 6250, while the sum is 29.

The square root of 11555255 is about 3399.3021342623. The cubic root of 11555255 is about 226.0788027594.

The spelling of 11555255 in words is "eleven million, five hundred fifty-five thousand, two hundred fifty-five".