2780555255253 has 12 divisors (see below), whose sum is σ = 4025302713900. Its totient is φ = 1849574985216.

The previous prime is 2780555255249. The next prime is 2780555255347. The reversal of 2780555255253 is 3525525550872.

2780555255253 is a `hidden beast` number, since 2 + 7 + 80 + 5 + 5 + 5 + 2 + 552 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1965205852164 + 815349403089 = 1401858^2 + 902967^2 .

It is not a de Polignac number, because 2780555255253 - 2² = 2780555255249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2780555255253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780555255453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344038926 + ... + 344047007.

It is an arithmetic number, because the mean of its divisors is an integer number (335441892825).

Almost surely, 2^{2780555255253} is an apocalyptic number.

It is an amenable number.

2780555255253 is a deficient number, since it is larger than the sum of its proper divisors (1244747458647).

2780555255253 is a wasteful number, since it uses less digits than its factorization.

2780555255253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688086388 (or 688086385 counting only the distinct ones).

The product of its (nonzero) digits is 21000000, while the sum is 54.

The spelling of 2780555255253 in words is "two trillion, seven hundred eighty billion, five hundred fifty-five million, two hundred fifty-five thousand, two hundred fifty-three".