1161502055 has 32 divisors (see below), whose sum is σ = 1650931200. Its totient is φ = 767555712.

The previous prime is 1161502031. The next prime is 1161502061. The reversal of 1161502055 is 5502051611.

It is not a de Polignac number, because 1161502055 - 2¹⁰ = 1161501031 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1033724 + ... + 1034846.

It is an arithmetic number, because the mean of its divisors is an integer number (51591600).

Almost surely, 2^1161502055 is an apocalyptic number.

1161502055 is a deficient number, since it is larger than the sum of its proper divisors (489429145).

1161502055 is a wasteful number, since it uses less digits than its factorization.

1161502055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 1161502055 is about 34080.8165248428. The cubic root of 1161502055 is about 1051.1708948635.

Adding to 1161502055 its reverse (5502051611), we get a palindrome (6663553666).

The spelling of 1161502055 in words is "one billion, one hundred sixty-one million, five hundred two thousand, fifty-five".