11213755 has 16 divisors (see below), whose sum is σ = 15738624. Its totient is φ = 7509600.

The previous prime is 11213747. The next prime is 11213759. The reversal of 11213755 is 55731211.

It is not a de Polignac number, because 11213755 - 2³ = 11213747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11213759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2221 + ... + 5230.

It is an arithmetic number, because the mean of its divisors is an integer number (983664).

Almost surely, 2^11213755 is an apocalyptic number.

11213755 is a deficient number, since it is larger than the sum of its proper divisors (4524869).

11213755 is an equidigital number, since it uses as much as digits as its factorization.

11213755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7506.

The product of its digits is 1050, while the sum is 25.

The square root of 11213755 is about 3348.6945217502. The cubic root of 11213755 is about 223.8293436032.

Adding to 11213755 its reverse (55731211), we get a palindrome (66944966).

The spelling of 11213755 in words is "eleven million, two hundred thirteen thousand, seven hundred fifty-five".