1255427514449 has 4 divisors (see below), whose sum is σ = 1256349946020. Its totient is φ = 1254505082880.

The previous prime is 1255427514443. The next prime is 1255427514493. The reversal of 1255427514449 is 9444157245521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 717632625424 + 537794889025 = 847132^2 + 733345^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255427514449 - 2¹² = 1255427510353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1255427514449.

It is not an unprimeable number, because it can be changed into a prime (1255427514443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461213744 + ... + 461216465.

It is an arithmetic number, because the mean of its divisors is an integer number (314087486505).

Almost surely, 2^{1255427514449} is an apocalyptic number.

It is an amenable number.

1255427514449 is a deficient number, since it is larger than the sum of its proper divisors (922431571).

1255427514449 is an equidigital number, since it uses as much as digits as its factorization.

1255427514449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922431570.

The product of its digits is 8064000, while the sum is 53.

The spelling of 1255427514449 in words is "one trillion, two hundred fifty-five billion, four hundred twenty-seven million, five hundred fourteen thousand, four hundred forty-nine".