2755277530021 has 2 divisors, whose sum is σ = 2755277530022. Its totient is φ = 2755277530020.

The previous prime is 2755277530007. The next prime is 2755277530043. The reversal of 2755277530021 is 1200357725572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2118815028225 + 636462501796 = 1455615^2 + 797786^2 .

It is a cyclic number.

It is not a de Polignac number, because 2755277530021 - 2¹¹ = 2755277527973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2755277530081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1377638765010 + 1377638765011.

It is an arithmetic number, because the mean of its divisors is an integer number (1377638765011).

Almost surely, 2^{2755277530021} is an apocalyptic number.

It is an amenable number.

2755277530021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2755277530021 is an equidigital number, since it uses as much as digits as its factorization.

2755277530021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1029000, while the sum is 46.

The spelling of 2755277530021 in words is "two trillion, seven hundred fifty-five billion, two hundred seventy-seven million, five hundred thirty thousand, twenty-one".