105520025 has 24 divisors (see below), whose sum is σ = 143324160. Its totient is φ = 76587840.

The previous prime is 105519991. The next prime is 105520039. The reversal of 105520025 is 520025501.

It is not a de Polignac number, because 105520025 - 2⁶ = 105519961 is a prime.

It is a super-2 number, since 2×105520025² = 22268951352001250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 105519979 and 105520006.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 16424 + ... + 21926.

It is an arithmetic number, because the mean of its divisors is an integer number (5971840).

Almost surely, 2^105520025 is an apocalyptic number.

It is an amenable number.

105520025 is a deficient number, since it is larger than the sum of its proper divisors (37804135).

105520025 is a wasteful number, since it uses less digits than its factorization.

105520025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5585 (or 5580 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 105520025 is about 10272.2940475826. The cubic root of 105520025 is about 472.5469471749.

Adding to 105520025 its reverse (520025501), we get a palindrome (625545526).

The spelling of 105520025 in words is "one hundred five million, five hundred twenty thousand, twenty-five".