105025220 has 12 divisors (see below), whose sum is σ = 220553004. Its totient is φ = 42010080.

The previous prime is 105025187. The next prime is 105025223. The reversal of 105025220 is 22520501.

It can be written as a sum of positive squares in 2 ways, for example, as 62853184 + 42172036 = 7928^2 + 6494^2 .

It is a super-2 number, since 2×105025220² = 22060593672096800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105025223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2625611 + ... + 2625650.

It is an arithmetic number, because the mean of its divisors is an integer number (18379417).

Almost surely, 2^105025220 is an apocalyptic number.

105025220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105025220 is an abundant number, since it is smaller than the sum of its proper divisors (115527784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105025220 is a wasteful number, since it uses less digits than its factorization.

105025220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251270 (or 5251268 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 105025220 is about 10248.1813020653. The cubic root of 105025220 is about 471.8071665134.

Adding to 105025220 its reverse (22520501), we get a palindrome (127545721).

The spelling of 105025220 in words is "one hundred five million, twenty-five thousand, two hundred twenty".