2558460000221 has 2 divisors, whose sum is σ = 2558460000222. Its totient is φ = 2558460000220.

The previous prime is 2558460000211. The next prime is 2558460000287. The reversal of 2558460000221 is 1220000648552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2526351302500 + 32108697721 = 1589450^2 + 179189^2 .

It is a cyclic number.

It is not a de Polignac number, because 2558460000221 - 2¹⁸ = 2558459738077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2558460000211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1279230000110 + 1279230000111.

It is an arithmetic number, because the mean of its divisors is an integer number (1279230000111).

Almost surely, 2^{2558460000221} is an apocalyptic number.

It is an amenable number.

2558460000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2558460000221 is an equidigital number, since it uses as much as digits as its factorization.

2558460000221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 2558460000221 its reverse (1220000648552), we get a palindrome (3778460648773).

The spelling of 2558460000221 in words is "two trillion, five hundred fifty-eight billion, four hundred sixty million, two hundred twenty-one", and thus it is an aban number.