1155535505 has 16 divisors (see below), whose sum is σ = 1425243600. Its totient is φ = 899036160.

The previous prime is 1155535481. The next prime is 1155535523. The reversal of 1155535505 is 5055355511.

It can be written as a sum of positive squares in 8 ways, for example, as 337346689 + 818188816 = 18367^2 + 28604^2 .

It is not a de Polignac number, because 1155535505 - 2²⁴ = 1138758289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5861 + ... + 48429.

It is an arithmetic number, because the mean of its divisors is an integer number (89077725).

Almost surely, 2^1155535505 is an apocalyptic number.

It is an amenable number.

1155535505 is a deficient number, since it is larger than the sum of its proper divisors (269708095).

1155535505 is an equidigital number, since it uses as much as digits as its factorization.

1155535505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42724.

The product of its (nonzero) digits is 46875, while the sum is 35.

The square root of 1155535505 is about 33993.1685048629. The cubic root of 1155535505 is about 1049.3678750020.

The spelling of 1155535505 in words is "one billion, one hundred fifty-five million, five hundred thirty-five thousand, five hundred five".