1105555550 has 48 divisors (see below), whose sum is σ = 2247405264. Its totient is φ = 401280000.

The previous prime is 1105555541. The next prime is 1105555589. The reversal of 1105555550 is 555555011.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362030 + ... + 365070.

It is an arithmetic number, because the mean of its divisors is an integer number (46820943).

Almost surely, 2^1105555550 is an apocalyptic number.

1105555550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1105555550 is an abundant number, since it is smaller than the sum of its proper divisors (1141849714).

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

1105555550 is a wasteful number, since it uses less digits than its factorization.

1105555550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725 (or 3720 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 32.

The square root of 1105555550 is about 33249.8954885576. The cubic root of 1105555550 is about 1034.0150415525.

It can be divided in two parts, 1105 and 555550, that added together give a palindrome (556655).

The spelling of 1105555550 in words is "one billion, one hundred five million, five hundred fifty-five thousand, five hundred fifty".