1275000812055 has 12 divisors (see below), whose sum is σ = 2210001407640. Its totient is φ = 680000433072.

The previous prime is 1275000812011. The next prime is 1275000812149. The reversal of 1275000812055 is 5502180005721.

1275000812055 is a `hidden beast` number, since 1 + 2 + 7 + 500 + 0 + 81 + 20 + 55 = 666.

It is not a de Polignac number, because 1275000812055 - 2¹⁷ = 1275000680983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14166675645 + ... + 14166675734.

It is an arithmetic number, because the mean of its divisors is an integer number (184166783970).

Almost surely, 2^{1275000812055} is an apocalyptic number.

1275000812055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1275000812055 is a deficient number, since it is larger than the sum of its proper divisors (935000595585).

1275000812055 is a wasteful number, since it uses less digits than its factorization.

1275000812055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28333351390 (or 28333351387 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 36.

Adding to 1275000812055 its reverse (5502180005721), we get a palindrome (6777180817776).

The spelling of 1275000812055 in words is "one trillion, two hundred seventy-five billion, eight hundred twelve thousand, fifty-five".