8487513855 has 32 divisors (see below), whose sum is σ = 15119032320. Its totient is φ = 4517638560.

The previous prime is 8487513833. The next prime is 8487513869. The reversal of 8487513855 is 5583157848.

8487513855 is a `hidden beast` number, since 8 + 48 + 7 + 513 + 85 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-8487513855 is a prime.

It is a super-2 number, since 2×8487513855² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5410 + ... + 130400.

It is an arithmetic number, because the mean of its divisors is an integer number (472469760).

Almost surely, 2^8487513855 is an apocalyptic number.

8487513855 is a deficient number, since it is larger than the sum of its proper divisors (6631518465).

8487513855 is a wasteful number, since it uses less digits than its factorization.

8487513855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125508 (or 125502 counting only the distinct ones).

The product of its digits is 5376000, while the sum is 54.

The square root of 8487513855 is about 92127.7040580085. The cubic root of 8487513855 is about 2039.8277644379.

The spelling of 8487513855 in words is "eight billion, four hundred eighty-seven million, five hundred thirteen thousand, eight hundred fifty-five".