12755550897 has 24 divisors (see below), whose sum is σ = 19233672640. Its totient is φ = 8447360400.

The previous prime is 12755550793. The next prime is 12755550911. The reversal of 12755550897 is 79805555721.

12755550897 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 5 + 550 + 89 + 7 = 666.

It is not a de Polignac number, because 12755550897 - 2⁸ = 12755550641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12755550097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137122 + ... + 210507.

Almost surely, 2^12755550897 is an apocalyptic number.

It is an amenable number.

12755550897 is a deficient number, since it is larger than the sum of its proper divisors (6478121743).

12755550897 is an equidigital number, since it uses as much as digits as its factorization.

12755550897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347795 (or 347783 counting only the distinct ones).

The product of its (nonzero) digits is 4410000, while the sum is 54.

The spelling of 12755550897 in words is "twelve billion, seven hundred fifty-five million, five hundred fifty thousand, eight hundred ninety-seven".