11132555 has 12 divisors (see below), whose sum is σ = 15540480. Its totient is φ = 7633584.

The previous prime is 11132543. The next prime is 11132557. The reversal of 11132555 is 55523111.

It is a happy number.

It is not a de Polignac number, because 11132555 - 2¹² = 11128459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11132555.

It is not an unprimeable number, because it can be changed into a prime (11132557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22475 + ... + 22964.

It is an arithmetic number, because the mean of its divisors is an integer number (1295040).

Almost surely, 2^11132555 is an apocalyptic number.

11132555 is a deficient number, since it is larger than the sum of its proper divisors (4407925).

11132555 is an equidigital number, since it uses as much as digits as its factorization.

11132555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45458 (or 45451 counting only the distinct ones).

The product of its digits is 750, while the sum is 23.

The square root of 11132555 is about 3336.5483662012. The cubic root of 11132555 is about 223.2877769013.

Adding to 11132555 its reverse (55523111), we get a palindrome (66655666).

The spelling of 11132555 in words is "eleven million, one hundred thirty-two thousand, five hundred fifty-five".