11545455 has 16 divisors (see below), whose sum is σ = 18708480. Its totient is φ = 6079008.

The previous prime is 11545439. The next prime is 11545459. The reversal of 11545455 is 55454511.

It is not a de Polignac number, because 11545455 - 2⁴ = 11545439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11545459) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3687 + ... + 6056.

It is an arithmetic number, because the mean of its divisors is an integer number (1169280).

Almost surely, 2^11545455 is an apocalyptic number.

11545455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11545455 is a deficient number, since it is larger than the sum of its proper divisors (7163025).

11545455 is an equidigital number, since it uses as much as digits as its factorization.

11545455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9830.

The product of its digits is 10000, while the sum is 30.

The square root of 11545455 is about 3397.8603561653. The cubic root of 11545455 is about 226.0148722820.

Adding to 11545455 its reverse (55454511), we get a palindrome (66999966).

The spelling of 11545455 in words is "eleven million, five hundred forty-five thousand, four hundred fifty-five".