2562258821 has 2 divisors, whose sum is σ = 2562258822. Its totient is φ = 2562258820.

The previous prime is 2562258817. The next prime is 2562258869. The reversal of 2562258821 is 1288522652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1986930625 + 575328196 = 44575^2 + 23986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2562258821 - 2² = 2562258817 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2562252821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281129410 + 1281129411.

It is an arithmetic number, because the mean of its divisors is an integer number (1281129411).

Almost surely, 2^2562258821 is an apocalyptic number.

It is an amenable number.

2562258821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2562258821 is an equidigital number, since it uses as much as digits as its factorization.

2562258821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153600, while the sum is 41.

The square root of 2562258821 is about 50618.7595758727. The cubic root of 2562258821 is about 1368.3829858932.

The spelling of 2562258821 in words is "two billion, five hundred sixty-two million, two hundred fifty-eight thousand, eight hundred twenty-one".