11172455 has 16 divisors (see below), whose sum is σ = 15576384. Its totient is φ = 7534080.

The previous prime is 11172443. The next prime is 11172463. The reversal of 11172455 is 55427111.

11172455 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11172455 - 2⁸ = 11172199 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482 + ... + 4751.

It is an arithmetic number, because the mean of its divisors is an integer number (973524).

Almost surely, 2^11172455 is an apocalyptic number.

11172455 is a deficient number, since it is larger than the sum of its proper divisors (4403929).

11172455 is an equidigital number, since it uses as much as digits as its factorization.

11172455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5306.

The product of its digits is 1400, while the sum is 26.

The square root of 11172455 is about 3342.5222512348. The cubic root of 11172455 is about 223.5542194712.

Adding to 11172455 its reverse (55427111), we get a palindrome (66599566).

The spelling of 11172455 in words is "eleven million, one hundred seventy-two thousand, four hundred fifty-five".