105020425 has 12 divisors (see below), whose sum is σ = 130372236. Its totient is φ = 83921600.

The previous prime is 105020417. The next prime is 105020449. The reversal of 105020425 is 524020501.

It can be written as a sum of positive squares in 6 ways, for example, as 1245456 + 103774969 = 1116^2 + 10187^2 .

It is not a de Polignac number, because 105020425 - 2³ = 105020417 is a prime.

It is a super-2 number, since 2×105020425² = 22058579334361250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 27747 + ... + 31303.

It is an arithmetic number, because the mean of its divisors is an integer number (10864353).

Almost surely, 2^105020425 is an apocalyptic number.

It is an amenable number.

105020425 is a deficient number, since it is larger than the sum of its proper divisors (25351811).

105020425 is a wasteful number, since it uses less digits than its factorization.

105020425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4748 (or 4743 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 105020425 is about 10247.9473554464. The cubic root of 105020425 is about 471.7999861752.

Adding to 105020425 its reverse (524020501), we get a palindrome (629040926).

The spelling of 105020425 in words is "one hundred five million, twenty thousand, four hundred twenty-five".