11555279 has 6 divisors (see below), whose sum is σ = 11808624. Its totient is φ = 11307260.

The previous prime is 11555273. The next prime is 11555303. The reversal of 11555279 is 97255511.

11555279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11555279 - 2⁴ = 11555263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11555273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 407 + ... + 4824.

It is an arithmetic number, because the mean of its divisors is an integer number (1968104).

Almost surely, 2^11555279 is an apocalyptic number.

11555279 is a deficient number, since it is larger than the sum of its proper divisors (253345).

11555279 is an frugal number, since it uses more digits than its factorization.

11555279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5325 (or 5278 counting only the distinct ones).

The product of its digits is 15750, while the sum is 35.

The square root of 11555279 is about 3399.3056643968. The cubic root of 11555279 is about 226.0789592794.

The spelling of 11555279 in words is "eleven million, five hundred fifty-five thousand, two hundred seventy-nine".