1105055515 has 4 divisors (see below), whose sum is σ = 1326066624. Its totient is φ = 884044408.

The previous prime is 1105055503. The next prime is 1105055519. The reversal of 1105055515 is 5155505011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1105055515 - 2⁷ = 1105055387 is a prime.

It is a super-2 number, since 2×1105055515² = 2442295382463830450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105055519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110505547 + ... + 110505556.

It is an arithmetic number, because the mean of its divisors is an integer number (331516656).

Almost surely, 2^1105055515 is an apocalyptic number.

1105055515 is a deficient number, since it is larger than the sum of its proper divisors (221011109).

1105055515 is an equidigital number, since it uses as much as digits as its factorization.

1105055515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221011108.

The product of its (nonzero) digits is 3125, while the sum is 28.

The square root of 1105055515 is about 33242.3752911852. The cubic root of 1105055515 is about 1033.8591254665.

The spelling of 1105055515 in words is "one billion, one hundred five million, fifty-five thousand, five hundred fifteen".