2562317321 has 2 divisors, whose sum is σ = 2562317322. Its totient is φ = 2562317320.

The previous prime is 2562317287. The next prime is 2562317347. The reversal of 2562317321 is 1237132652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2534014921 + 28302400 = 50339^2 + 5320^2 .

It is a cyclic number.

It is not a de Polignac number, because 2562317321 - 2²² = 2558123017 is a prime.

It is not a weakly prime, because it can be changed into another prime (2562310321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1281158660 + 1281158661.

It is an arithmetic number, because the mean of its divisors is an integer number (1281158661).

Almost surely, 2^2562317321 is an apocalyptic number.

It is an amenable number.

2562317321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2562317321 is an equidigital number, since it uses as much as digits as its factorization.

2562317321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 2562317321 is about 50619.3374215823. The cubic root of 2562317321 is about 1368.3933998549.

Adding to 2562317321 its reverse (1237132652), we get a palindrome (3799449973).

The spelling of 2562317321 in words is "two billion, five hundred sixty-two million, three hundred seventeen thousand, three hundred twenty-one".