105207055 has 4 divisors (see below), whose sum is σ = 126248472. Its totient is φ = 84165640.

The previous prime is 105207049. The next prime is 105207059. The reversal of 105207055 is 550702501.

It is a happy number.

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

It is not a de Polignac number, because 105207055 - 2¹¹ = 105205007 is a prime.

It is a super-2 number, since 2×105207055² = 22137048843546050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105207059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10520701 + ... + 10520710.

It is an arithmetic number, because the mean of its divisors is an integer number (31562118).

Almost surely, 2^105207055 is an apocalyptic number.

105207055 is a deficient number, since it is larger than the sum of its proper divisors (21041417).

105207055 is an equidigital number, since it uses as much as digits as its factorization.

105207055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21041416.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 105207055 is about 10257.0490395630. The cubic root of 105207055 is about 472.0792966816.

Adding to 105207055 its reverse (550702501), we get a palindrome (655909556).

The spelling of 105207055 in words is "one hundred five million, two hundred seven thousand, fifty-five".