7524868513 has 2 divisors, whose sum is σ = 7524868514. Its totient is φ = 7524868512.

The previous prime is 7524868511. The next prime is 7524868517. The reversal of 7524868513 is 3158684257.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5249292304 + 2275576209 = 72452^2 + 47703^2 .

It is an emirp because it is prime and its reverse (3158684257) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7524868513 - 2¹ = 7524868511 is a prime.

It is a super-2 number, since 2×7524868513² (a number of 21 digits) contains 22 as substring.

Together with 7524868511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7524868511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3762434256 + 3762434257.

It is an arithmetic number, because the mean of its divisors is an integer number (3762434257).

Almost surely, 2^7524868513 is an apocalyptic number.

It is an amenable number.

7524868513 is a deficient number, since it is larger than the sum of its proper divisors (1).

7524868513 is an equidigital number, since it uses as much as digits as its factorization.

7524868513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 49.

The square root of 7524868513 is about 86745.9999827081. Note that the first 4 decimals coincide. The cubic root of 7524868513 is about 1959.5949212328.

The spelling of 7524868513 in words is "seven billion, five hundred twenty-four million, eight hundred sixty-eight thousand, five hundred thirteen".