105581055 has 16 divisors (see below), whose sum is σ = 169064064. Its totient is φ = 56265120.

The previous prime is 105581023. The next prime is 105581107. The reversal of 105581055 is 550185501.

It is not a de Polignac number, because 105581055 - 2⁵ = 105581023 is a prime.

It is a super-2 number, since 2×105581055² = 22294718349826050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26760 + ... + 30450.

It is an arithmetic number, because the mean of its divisors is an integer number (10566504).

Almost surely, 2^105581055 is an apocalyptic number.

105581055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105581055 is a deficient number, since it is larger than the sum of its proper divisors (63483009).

105581055 is a wasteful number, since it uses less digits than its factorization.

105581055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606.

The product of its (nonzero) digits is 5000, while the sum is 30.

The square root of 105581055 is about 10275.2642301792. The cubic root of 105581055 is about 472.6380325146.

The spelling of 105581055 in words is "one hundred five million, five hundred eighty-one thousand, fifty-five".