11241555 has 16 divisors (see below), whose sum is σ = 19370400. Its totient is φ = 5534208.

The previous prime is 11241553. The next prime is 11241557. The reversal of 11241555 is 55514211.

It is an interprime number because it is at equal distance from previous prime (11241553) and next prime (11241557).

It is not a de Polignac number, because 11241555 - 2¹ = 11241553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11241553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28630 + ... + 29019.

It is an arithmetic number, because the mean of its divisors is an integer number (1210650).

Almost surely, 2^11241555 is an apocalyptic number.

11241555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11241555 is a deficient number, since it is larger than the sum of its proper divisors (8128845).

11241555 is a wasteful number, since it uses less digits than its factorization.

11241555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57670.

The product of its digits is 1000, while the sum is 24.

The square root of 11241555 is about 3352.8428236349. The cubic root of 11241555 is about 224.0141559400.

Adding to 11241555 its reverse (55514211), we get a palindrome (66755766).

The spelling of 11241555 in words is "eleven million, two hundred forty-one thousand, five hundred fifty-five".