8254085210505 has 48 divisors (see below), whose sum is σ = 15111485363520. Its totient is φ = 4156251295104.

The previous prime is 8254085210477. The next prime is 8254085210507. The reversal of 8254085210505 is 5050125804528.

8254085210505 is a `hidden beast` number, since 8 + 2 + 5 + 40 + 85 + 21 + 0 + 505 = 666.

It is not a de Polignac number, because 8254085210505 - 2⁷ = 8254085210377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8254085210507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16223719 + ... + 16724748.

It is an arithmetic number, because the mean of its divisors is an integer number (314822611740).

Almost surely, 2^{8254085210505} is an apocalyptic number.

It is an amenable number.

8254085210505 is a deficient number, since it is larger than the sum of its proper divisors (6857400153015).

8254085210505 is a wasteful number, since it uses less digits than its factorization.

8254085210505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32948790 (or 32948787 counting only the distinct ones).

The product of its (nonzero) digits is 640000, while the sum is 45.

The spelling of 8254085210505 in words is "eight trillion, two hundred fifty-four billion, eighty-five million, two hundred ten thousand, five hundred five".