105550085425 has 6 divisors (see below), whose sum is σ = 130882105958. Its totient is φ = 84440068320.

The previous prime is 105550085357. The next prime is 105550085437. The reversal of 105550085425 is 524580055501.

It can be written as a sum of positive squares in 3 ways, for example, as 471969 + 105549613456 = 687^2 + 324884^2 .

It is a de Polignac number, because none of the positive numbers 2^k-105550085425 is a prime.

It is a super-2 number, since 2×105550085425² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2111001684 + ... + 2111001733.

Almost surely, 2^105550085425 is an apocalyptic number.

It is an amenable number.

105550085425 is a deficient number, since it is larger than the sum of its proper divisors (25332020533).

105550085425 is an equidigital number, since it uses as much as digits as its factorization.

105550085425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222003427 (or 4222003422 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 40.

The spelling of 105550085425 in words is "one hundred five billion, five hundred fifty million, eighty-five thousand, four hundred twenty-five".