1105555500 has 192 divisors, whose sum is σ = 4088448000. Its totient is φ = 252676800.

The previous prime is 1105555483. The next prime is 1105555519. The reversal of 1105555500 is 55555011.

1105555500 is a `hidden beast` number, since 1 + 105 + 5 + 5 + 550 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 88651 + ... + 100349.

It is an arithmetic number, because the mean of its divisors is an integer number (21294000).

Almost surely, 2^1105555500 is an apocalyptic number.

1105555500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1105555500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2044224000).

1105555500 is an abundant number, since it is smaller than the sum of its proper divisors (2982892500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1105555500 is a wasteful number, since it uses less digits than its factorization.

1105555500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11734 (or 11716 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The square root of 1105555500 is about 33249.8947366755. The cubic root of 1105555500 is about 1034.0150259643.

It can be divided in two parts, 1 and 105555500, that added together give a palindrome (105555501).

The spelling of 1105555500 in words is "one billion, one hundred five million, five hundred fifty-five thousand, five hundred".