5241564509 has 2 divisors, whose sum is σ = 5241564510. Its totient is φ = 5241564508.

The previous prime is 5241564481. The next prime is 5241564511. The reversal of 5241564509 is 9054651425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2904132100 + 2337432409 = 53890^2 + 48347^2 .

It is a cyclic number.

It is not a de Polignac number, because 5241564509 - 2²⁸ = 4973129053 is a prime.

It is a super-2 number, since 2×5241564509² = 54947997004016822162, which contains 22 as substring.

Together with 5241564511, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5241564109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2620782254 + 2620782255.

It is an arithmetic number, because the mean of its divisors is an integer number (2620782255).

Almost surely, 2^5241564509 is an apocalyptic number.

It is an amenable number.

5241564509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5241564509 is an equidigital number, since it uses as much as digits as its factorization.

5241564509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 5241564509 is about 72398.6499114452. The cubic root of 5241564509 is about 1737.0819665708.

The spelling of 5241564509 in words is "five billion, two hundred forty-one million, five hundred sixty-four thousand, five hundred nine".