105865055 has 24 divisors (see below), whose sum is σ = 135788400. Its totient is φ = 79212672.

The previous prime is 105865037. The next prime is 105865061. The reversal of 105865055 is 550568501.

It is not a de Polignac number, because 105865055 - 2⁸ = 105864799 is a prime.

It is a super-2 number, since 2×105865055² = 22414819740306050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160316 + ... + 160974.

It is an arithmetic number, because the mean of its divisors is an integer number (5657850).

Almost surely, 2^105865055 is an apocalyptic number.

105865055 is a deficient number, since it is larger than the sum of its proper divisors (29923345).

105865055 is an equidigital number, since it uses as much as digits as its factorization.

105865055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

The square root of 105865055 is about 10289.0745453612. The cubic root of 105865055 is about 473.0614324243.

The spelling of 105865055 in words is "one hundred five million, eight hundred sixty-five thousand, fifty-five".