2562631321 has 2 divisors, whose sum is σ = 2562631322. Its totient is φ = 2562631320.

The previous prime is 2562631303. The next prime is 2562631339. The reversal of 2562631321 is 1231362652.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2562631303) and next prime (2562631339).

It can be written as a sum of positive squares in only one way, i.e., 1446737296 + 1115894025 = 38036^2 + 33405^2 .

It is a cyclic number.

It is not a de Polignac number, because 2562631321 - 2¹⁹ = 2562107033 is a prime.

It is not a weakly prime, because it can be changed into another prime (2562631361) 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, 1281315660 + 1281315661.

It is an arithmetic number, because the mean of its divisors is an integer number (1281315661).

Almost surely, 2^2562631321 is an apocalyptic number.

It is an amenable number.

2562631321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2562631321 is an equidigital number, since it uses as much as digits as its factorization.

2562631321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 2562631321 is about 50622.4389080574. The cubic root of 2562631321 is about 1368.4492943081.

Adding to 2562631321 its reverse (1231362652), we get a palindrome (3793993973).

The spelling of 2562631321 in words is "two billion, five hundred sixty-two million, six hundred thirty-one thousand, three hundred twenty-one".