2551022351291 has 2 divisors, whose sum is σ = 2551022351292. Its totient is φ = 2551022351290.

The previous prime is 2551022351281. The next prime is 2551022351323. The reversal of 2551022351291 is 1921532201552.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2551022351291 is a prime.

It is not a weakly prime, because it can be changed into another prime (2551022351261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275511175645 + 1275511175646.

It is an arithmetic number, because the mean of its divisors is an integer number (1275511175646).

Almost surely, 2^{2551022351291} is an apocalyptic number.

2551022351291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551022351291 is an equidigital number, since it uses as much as digits as its factorization.

2551022351291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 2551022351291 in words is "two trillion, five hundred fifty-one billion, twenty-two million, three hundred fifty-one thousand, two hundred ninety-one".