1115055885 has 32 divisors (see below), whose sum is σ = 1832608512. Its totient is φ = 578603520.

The previous prime is 1115055883. The next prime is 1115055889. The reversal of 1115055885 is 5885505111.

It is not a de Polignac number, because 1115055885 - 2¹ = 1115055883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115055883) 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, 241872 + ... + 246438.

It is an arithmetic number, because the mean of its divisors is an integer number (57269016).

Almost surely, 2^1115055885 is an apocalyptic number.

1115055885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1115055885 is a deficient number, since it is larger than the sum of its proper divisors (717552627).

1115055885 is a wasteful number, since it uses less digits than its factorization.

1115055885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5013.

The product of its (nonzero) digits is 40000, while the sum is 39.

The square root of 1115055885 is about 33392.4525155012. The cubic root of 1115055885 is about 1036.9684538994.

The spelling of 1115055885 in words is "one billion, one hundred fifteen million, fifty-five thousand, eight hundred eighty-five".