1273600055 has 24 divisors (see below), whose sum is σ = 1891353312. Its totient is φ = 806143104.

The previous prime is 1273600007. The next prime is 1273600079. The reversal of 1273600055 is 5500063721.

It is not a de Polignac number, because 1273600055 - 2¹⁴ = 1273583671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 101744 + ... + 113573.

It is an arithmetic number, because the mean of its divisors is an integer number (78806388).

Almost surely, 2^1273600055 is an apocalyptic number.

1273600055 is a deficient number, since it is larger than the sum of its proper divisors (617753257).

1273600055 is a wasteful number, since it uses less digits than its factorization.

1273600055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215355 (or 215342 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 1273600055 is about 35687.5336076900. The cubic root of 1273600055 is about 1083.9544260715.

Adding to 1273600055 its reverse (5500063721), we get a palindrome (6773663776).

The spelling of 1273600055 in words is "one billion, two hundred seventy-three million, six hundred thousand, fifty-five".