8487253257 has 32 divisors (see below), whose sum is σ = 13259925504. Its totient is φ = 4727452800.

The previous prime is 8487253249. The next prime is 8487253259. The reversal of 8487253257 is 7523527848.

It is not a de Polignac number, because 8487253257 - 2³ = 8487253249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8487253259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1173382 + ... + 1180592.

It is an arithmetic number, because the mean of its divisors is an integer number (414372672).

Almost surely, 2^8487253257 is an apocalyptic number.

It is an amenable number.

8487253257 is a deficient number, since it is larger than the sum of its proper divisors (4772672247).

8487253257 is a wasteful number, since it uses less digits than its factorization.

8487253257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8629.

The product of its digits is 3763200, while the sum is 51.

The square root of 8487253257 is about 92126.2897168881. The cubic root of 8487253257 is about 2039.8068874774.

The spelling of 8487253257 in words is "eight billion, four hundred eighty-seven million, two hundred fifty-three thousand, two hundred fifty-seven".