105520005 has 12 divisors (see below), whose sum is σ = 182901420. Its totient is φ = 56277312.

The previous prime is 105519991. The next prime is 105520039. The reversal of 105520005 is 500025501.

It can be written as a sum of positive squares in 2 ways, for example, as 25220484 + 80299521 = 5022^2 + 8961^2 .

It is not a de Polignac number, because 105520005 - 2⁴ = 105519989 is a prime.

It is a super-2 number, since 2×105520005² = 22268942910400050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105520005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1172400 + ... + 1172489.

It is an arithmetic number, because the mean of its divisors is an integer number (15241785).

Almost surely, 2^105520005 is an apocalyptic number.

105520005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105520005 is a deficient number, since it is larger than the sum of its proper divisors (77381415).

105520005 is a wasteful number, since it uses less digits than its factorization.

105520005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344900 (or 2344897 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 105520005 is about 10272.2930740901. The cubic root of 105520005 is about 472.5469173198.

Adding to 105520005 its reverse (500025501), we get a palindrome (605545506).

The spelling of 105520005 in words is "one hundred five million, five hundred twenty thousand, five".