1155799053 has 12 divisors (see below), whose sum is σ = 1669885308. Its totient is φ = 770349120.

The previous prime is 1155799033. The next prime is 1155799069. The reversal of 1155799053 is 3509975511.

1155799053 is a `hidden beast` number, since 1 + 1 + 557 + 9 + 90 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 515607849 + 640191204 = 22707^2 + 25302^2 .

It is not a de Polignac number, because 1155799053 - 2⁸ = 1155798797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155799033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32401 + ... + 57977.

It is an arithmetic number, because the mean of its divisors is an integer number (139157109).

Almost surely, 2^1155799053 is an apocalyptic number.

It is an amenable number.

1155799053 is a deficient number, since it is larger than the sum of its proper divisors (514086255).

1155799053 is a wasteful number, since it uses less digits than its factorization.

1155799053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30604 (or 30601 counting only the distinct ones).

The product of its (nonzero) digits is 212625, while the sum is 45.

The square root of 1155799053 is about 33997.0447686266. The cubic root of 1155799053 is about 1049.4476469003.

The spelling of 1155799053 in words is "one billion, one hundred fifty-five million, seven hundred ninety-nine thousand, fifty-three".