1150220055 has 32 divisors (see below), whose sum is σ = 1866908160. Its totient is φ = 604656000.

The previous prime is 1150220053. The next prime is 1150220129. The reversal of 1150220055 is 5500220511.

It is not a de Polignac number, because 1150220055 - 2¹ = 1150220053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150220053) by changing a digit.

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, 352180 + ... + 355430.

It is an arithmetic number, because the mean of its divisors is an integer number (58340880).

Almost surely, 2^1150220055 is an apocalyptic number.

1150220055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1150220055 is a deficient number, since it is larger than the sum of its proper divisors (716688105).

1150220055 is a wasteful number, since it uses less digits than its factorization.

1150220055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1150220055 is about 33914.8942943952. The cubic root of 1150220055 is about 1047.7563748009.

Adding to 1150220055 its reverse (5500220511), we get a palindrome (6650440566).

The spelling of 1150220055 in words is "one billion, one hundred fifty million, two hundred twenty thousand, fifty-five".