7522528397 has 2 divisors, whose sum is σ = 7522528398. Its totient is φ = 7522528396.

The previous prime is 7522528367. The next prime is 7522528421. The reversal of 7522528397 is 7938252257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6351930601 + 1170597796 = 79699^2 + 34214^2 .

It is a cyclic number.

It is not a de Polignac number, because 7522528397 - 2⁶ = 7522528333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7522528367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3761264198 + 3761264199.

It is an arithmetic number, because the mean of its divisors is an integer number (3761264199).

Almost surely, 2^7522528397 is an apocalyptic number.

It is an amenable number.

7522528397 is a deficient number, since it is larger than the sum of its proper divisors (1).

7522528397 is an equidigital number, since it uses as much as digits as its factorization.

7522528397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2116800, while the sum is 50.

The square root of 7522528397 is about 86732.5106116501. The cubic root of 7522528397 is about 1959.3917657509.

The spelling of 7522528397 in words is "seven billion, five hundred twenty-two million, five hundred twenty-eight thousand, three hundred ninety-seven".