12775279125250 has 16 divisors (see below), whose sum is σ = 23915322522936. Its totient is φ = 5110111650000.

The previous prime is 12775279125211. The next prime is 12775279125251. The reversal of 12775279125250 is 5252197257721.

It can be written as a sum of positive squares in 4 ways, for example, as 8088751229329 + 4686527895921 = 2844073^2 + 2164839^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12775279125191 and 12775279125200.

It is not an unprimeable number, because it can be changed into a prime (12775279125251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25550558001 + ... + 25550558500.

Almost surely, 2^{12775279125250} is an apocalyptic number.

12775279125250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12775279125250 is a deficient number, since it is larger than the sum of its proper divisors (11140043397686).

12775279125250 is an equidigital number, since it uses as much as digits as its factorization.

12775279125250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51101116518 (or 51101116508 counting only the distinct ones).

The product of its (nonzero) digits is 6174000, while the sum is 55.

The spelling of 12775279125250 in words is "twelve trillion, seven hundred seventy-five billion, two hundred seventy-nine million, one hundred twenty-five thousand, two hundred fifty".