1105520655 has 16 divisors (see below), whose sum is σ = 1769310720. Its totient is φ = 589451808.

The previous prime is 1105520651. The next prime is 1105520657. The reversal of 1105520655 is 5560255011.

It is not a de Polignac number, because 1105520655 - 2² = 1105520651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105520651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66294 + ... + 81276.

It is an arithmetic number, because the mean of its divisors is an integer number (110581920).

Almost surely, 2^1105520655 is an apocalyptic number.

1105520655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1105520655 is a deficient number, since it is larger than the sum of its proper divisors (663790065).

1105520655 is a wasteful number, since it uses less digits than its factorization.

1105520655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19910.

The product of its (nonzero) digits is 7500, while the sum is 30.

The square root of 1105520655 is about 33249.3707459254. The cubic root of 1105520655 is about 1034.0041624566.

Adding to 1105520655 its reverse (5560255011), we get a palindrome (6665775666).

The spelling of 1105520655 in words is "one billion, one hundred five million, five hundred twenty thousand, six hundred fifty-five".