5247557431 has 2 divisors, whose sum is σ = 5247557432. Its totient is φ = 5247557430.

The previous prime is 5247557407. The next prime is 5247557437. The reversal of 5247557431 is 1347557425.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5247557431 - 2⁷ = 5247557303 is a prime.

It is a super-2 number, since 2×5247557431² = 55073717983286639522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5247557437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2623778715 + 2623778716.

It is an arithmetic number, because the mean of its divisors is an integer number (2623778716).

Almost surely, 2^5247557431 is an apocalyptic number.

5247557431 is a deficient number, since it is larger than the sum of its proper divisors (1).

5247557431 is an equidigital number, since it uses as much as digits as its factorization.

5247557431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 588000, while the sum is 43.

The square root of 5247557431 is about 72440.0264425683. The cubic root of 5247557431 is about 1737.7437430148.

The spelling of 5247557431 in words is "five billion, two hundred forty-seven million, five hundred fifty-seven thousand, four hundred thirty-one".