96521521 has 2 divisors, whose sum is σ = 96521522. Its totient is φ = 96521520.

The previous prime is 96521519. The next prime is 96521531. The reversal of 96521521 is 12512569.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53802225 + 42719296 = 7335^2 + 6536^2 .

It is an emirp because it is prime and its reverse (12512569) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 96521521 - 2¹ = 96521519 is a prime.

Together with 96521519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (96521531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48260760 + 48260761.

It is an arithmetic number, because the mean of its divisors is an integer number (48260761).

Almost surely, 2^96521521 is an apocalyptic number.

It is an amenable number.

96521521 is a deficient number, since it is larger than the sum of its proper divisors (1).

96521521 is an equidigital number, since it uses as much as digits as its factorization.

96521521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 31.

The square root of 96521521 is about 9824.5366811876. The cubic root of 96521521 is about 458.7133563427.

The spelling of 96521521 in words is "ninety-six million, five hundred twenty-one thousand, five hundred twenty-one".