2522521307 has 2 divisors, whose sum is σ = 2522521308. Its totient is φ = 2522521306.

The previous prime is 2522521229. The next prime is 2522521357. The reversal of 2522521307 is 7031252252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2522521307 - 2⁸ = 2522521051 is a prime.

It is a super-2 number, since 2×2522521307² = 12726227488537976498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2522521307.

It is not a weakly prime, because it can be changed into another prime (2522521357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261260653 + 1261260654.

It is an arithmetic number, because the mean of its divisors is an integer number (1261260654).

Almost surely, 2^2522521307 is an apocalyptic number.

2522521307 is a deficient number, since it is larger than the sum of its proper divisors (1).

2522521307 is an equidigital number, since it uses as much as digits as its factorization.

2522521307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 2522521307 is about 50224.7081325517. The cubic root of 2522521307 is about 1361.2721133201.

Adding to 2522521307 its reverse (7031252252), we get a palindrome (9553773559).

The spelling of 2522521307 in words is "two billion, five hundred twenty-two million, five hundred twenty-one thousand, three hundred seven".