2525322521 has 2 divisors, whose sum is σ = 2525322522. Its totient is φ = 2525322520.

The previous prime is 2525322497. The next prime is 2525322551. The reversal of 2525322521 is 1252235252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2222179600 + 303142921 = 47140^2 + 17411^2 .

It is a cyclic number.

It is not a de Polignac number, because 2525322521 - 2¹⁰ = 2525321497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2525322551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262661260 + 1262661261.

It is an arithmetic number, because the mean of its divisors is an integer number (1262661261).

Almost surely, 2^2525322521 is an apocalyptic number.

It is an amenable number.

2525322521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525322521 is an equidigital number, since it uses as much as digits as its factorization.

2525322521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 29.

The square root of 2525322521 is about 50252.5872070285. The cubic root of 2525322521 is about 1361.7758162170.

Adding to 2525322521 its reverse (1252235252), we get a palindrome (3777557773).

It can be divided in two parts, 25253 and 22521, that added together give a palindrome (47774).

The spelling of 2525322521 in words is "two billion, five hundred twenty-five million, three hundred twenty-two thousand, five hundred twenty-one".