1115544255 has 32 divisors (see below), whose sum is σ = 2055449088. Its totient is φ = 506064000.

The previous prime is 1115544203. The next prime is 1115544257. The reversal of 1115544255 is 5524455111.

It is a happy number.

It is not a de Polignac number, because 1115544255 - 2¹⁴ = 1115527871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115544257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26796 + ... + 54305.

It is an arithmetic number, because the mean of its divisors is an integer number (64232784).

Almost surely, 2^1115544255 is an apocalyptic number.

1115544255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1115544255 is a deficient number, since it is larger than the sum of its proper divisors (939904833).

1115544255 is a wasteful number, since it uses less digits than its factorization.

1115544255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81247.

The product of its digits is 20000, while the sum is 33.

The square root of 1115544255 is about 33399.7642955755. The cubic root of 1115544255 is about 1037.1198216094.

Adding to 1115544255 its reverse (5524455111), we get a palindrome (6639999366).

The spelling of 1115544255 in words is "one billion, one hundred fifteen million, five hundred forty-four thousand, two hundred fifty-five".