8457252047 has 2 divisors, whose sum is σ = 8457252048. Its totient is φ = 8457252046.

The previous prime is 8457252043. The next prime is 8457252077. The reversal of 8457252047 is 7402527548.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8457252047 - 2² = 8457252043 is a prime.

It is a super-2 number, since 2×8457252047² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8457251989 and 8457252007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8457252043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4228626023 + 4228626024.

It is an arithmetic number, because the mean of its divisors is an integer number (4228626024).

Almost surely, 2^8457252047 is an apocalyptic number.

8457252047 is a deficient number, since it is larger than the sum of its proper divisors (1).

8457252047 is an equidigital number, since it uses as much as digits as its factorization.

8457252047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 627200, while the sum is 44.

The square root of 8457252047 is about 91963.3190299263. The cubic root of 8457252047 is about 2037.4005760360.

The spelling of 8457252047 in words is "eight billion, four hundred fifty-seven million, two hundred fifty-two thousand, forty-seven".