11255555 has 4 divisors (see below), whose sum is σ = 13506672. Its totient is φ = 9004440.

The previous prime is 11255549. The next prime is 11255561. The reversal of 11255555 is 55555211.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11255549) and next prime (11255561).

It is not a de Polignac number, because 11255555 - 2¹⁴ = 11239171 is a prime.

It is a Duffinian number.

11255555 is a modest number, since divided by 5555 gives 1125 as remainder.

It is a plaindrome in base 10.

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, 1125551 + ... + 1125560.

It is an arithmetic number, because the mean of its divisors is an integer number (3376668).

Almost surely, 2^11255555 is an apocalyptic number.

11255555 is a deficient number, since it is larger than the sum of its proper divisors (2251117).

11255555 is an equidigital number, since it uses as much as digits as its factorization.

11255555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251116.

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

The square root of 11255555 is about 3354.9299545594. The cubic root of 11255555 is about 224.1071115606.

The spelling of 11255555 in words is "eleven million, two hundred fifty-five thousand, five hundred fifty-five".