11572155 has 48 divisors (see below), whose sum is σ = 24283584. Its totient is φ = 4976640.

The previous prime is 11572133. The next prime is 11572163. The reversal of 11572155 is 55127511.

It is not a de Polignac number, because 11572155 - 2¹⁴ = 11555771 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4275 + ... + 6435.

It is an arithmetic number, because the mean of its divisors is an integer number (505908).

Almost surely, 2^11572155 is an apocalyptic number.

11572155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11572155 is an abundant number, since it is smaller than the sum of its proper divisors (12711429).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11572155 is a wasteful number, since it uses less digits than its factorization.

11572155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196 (or 2193 counting only the distinct ones).

The product of its digits is 1750, while the sum is 27.

The square root of 11572155 is about 3401.7870303709. The cubic root of 11572155 is about 226.1889653542.

Adding to 11572155 its reverse (55127511), we get a palindrome (66699666).

The spelling of 11572155 in words is "eleven million, five hundred seventy-two thousand, one hundred fifty-five".