2520522401 has 2 divisors, whose sum is σ = 2520522402. Its totient is φ = 2520522400.

The previous prime is 2520522397. The next prime is 2520522409. The reversal of 2520522401 is 1042250252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1612102801 + 908419600 = 40151^2 + 30140^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520522401 - 2² = 2520522397 is a prime.

It is not a weakly prime, because it can be changed into another prime (2520522409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260261200 + 1260261201.

It is an arithmetic number, because the mean of its divisors is an integer number (1260261201).

Almost surely, 2^2520522401 is an apocalyptic number.

It is an amenable number.

2520522401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520522401 is an equidigital number, since it uses as much as digits as its factorization.

2520522401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2520522401 is about 50204.8045609183. The cubic root of 2520522401 is about 1360.9124501467.

Adding to 2520522401 its reverse (1042250252), we get a palindrome (3562772653).

The spelling of 2520522401 in words is "two billion, five hundred twenty million, five hundred twenty-two thousand, four hundred one".