1155050755 has 16 divisors (see below), whose sum is σ = 1473189120. Its totient is φ = 866900448.

The previous prime is 1155050747. The next prime is 1155050759. The reversal of 1155050755 is 5570505511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1155050755 - 2³ = 1155050747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1155050755.

It is not an unprimeable number, because it can be changed into a prime (1155050759) 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, 49237 + ... + 68806.

It is an arithmetic number, because the mean of its divisors is an integer number (92074320).

Almost surely, 2^1155050755 is an apocalyptic number.

1155050755 is a deficient number, since it is larger than the sum of its proper divisors (318138365).

1155050755 is a wasteful number, since it uses less digits than its factorization.

1155050755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118170.

The product of its (nonzero) digits is 21875, while the sum is 34.

The square root of 1155050755 is about 33986.0376478341. The cubic root of 1155050755 is about 1049.2211170061.

The spelling of 1155050755 in words is "one billion, one hundred fifty-five million, fifty thousand, seven hundred fifty-five".