11550045 has 32 divisors (see below), whose sum is σ = 20248704. Its totient is φ = 5587200.

The previous prime is 11550041. The next prime is 11550047. The reversal of 11550045 is 54005511.

It is not a de Polignac number, because 11550045 - 2² = 11550041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11550041) 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 31 ways as a sum of consecutive naturals, for example, 11410 + ... + 12380.

It is an arithmetic number, because the mean of its divisors is an integer number (632772).

Almost surely, 2^11550045 is an apocalyptic number.

11550045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11550045 is a deficient number, since it is larger than the sum of its proper divisors (8698659).

11550045 is a wasteful number, since it uses less digits than its factorization.

11550045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 11550045 is about 3398.5357140981. The cubic root of 11550045 is about 226.0448197323.

Adding to 11550045 its reverse (54005511), we get a palindrome (65555556).

The spelling of 11550045 in words is "eleven million, five hundred fifty thousand, forty-five".