5252647481 has 2 divisors, whose sum is σ = 5252647482. Its totient is φ = 5252647480.

The previous prime is 5252647459. The next prime is 5252647501. The reversal of 5252647481 is 1847462525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3183216400 + 2069431081 = 56420^2 + 45491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5252647481 is a prime.

It is a super-2 number, since 2×5252647481² = 55180611119311290722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5252647381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2626323740 + 2626323741.

It is an arithmetic number, because the mean of its divisors is an integer number (2626323741).

Almost surely, 2^5252647481 is an apocalyptic number.

It is an amenable number.

5252647481 is a deficient number, since it is larger than the sum of its proper divisors (1).

5252647481 is an equidigital number, since it uses as much as digits as its factorization.

5252647481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 537600, while the sum is 44.

The square root of 5252647481 is about 72475.1507828718. The cubic root of 5252647481 is about 1738.3054230150.

The spelling of 5252647481 in words is "five billion, two hundred fifty-two million, six hundred forty-seven thousand, four hundred eighty-one".