7322265521 has 2 divisors, whose sum is σ = 7322265522. Its totient is φ = 7322265520.

The previous prime is 7322265497. The next prime is 7322265527. The reversal of 7322265521 is 1255622237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3951882496 + 3370383025 = 62864^2 + 58055^2 .

It is an emirp because it is prime and its reverse (1255622237) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7322265521 is a prime.

It is not a weakly prime, because it can be changed into another prime (7322265527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3661132760 + 3661132761.

It is an arithmetic number, because the mean of its divisors is an integer number (3661132761).

Almost surely, 2^7322265521 is an apocalyptic number.

It is an amenable number.

7322265521 is a deficient number, since it is larger than the sum of its proper divisors (1).

7322265521 is an equidigital number, since it uses as much as digits as its factorization.

7322265521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 35.

The square root of 7322265521 is about 85570.2373550524. The cubic root of 7322265521 is about 1941.8476676529.

Adding to 7322265521 its reverse (1255622237), we get a palindrome (8577887758).

The spelling of 7322265521 in words is "seven billion, three hundred twenty-two million, two hundred sixty-five thousand, five hundred twenty-one".