1255566677225 has 48 divisors (see below), whose sum is σ = 1789124393472. Its totient is φ = 856217640960.

The previous prime is 1255566677153. The next prime is 1255566677237. The reversal of 1255566677225 is 5227766655521.

It is a happy number.

It is not a de Polignac number, because 1255566677225 - 2²⁰ = 1255565628649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193966589 + ... + 193973061.

It is an arithmetic number, because the mean of its divisors is an integer number (37273424864).

Almost surely, 2^{1255566677225} is an apocalyptic number.

It is an amenable number.

1255566677225 is a deficient number, since it is larger than the sum of its proper divisors (533557716247).

1255566677225 is a wasteful number, since it uses less digits than its factorization.

1255566677225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12426 (or 12421 counting only the distinct ones).

The product of its digits is 52920000, while the sum is 59.

The spelling of 1255566677225 in words is "one trillion, two hundred fifty-five billion, five hundred sixty-six million, six hundred seventy-seven thousand, two hundred twenty-five".