85015253508 has 48 divisors (see below), whose sum is σ = 199277010240. Its totient is φ = 28208793600.

The previous prime is 85015253503. The next prime is 85015253509. The reversal of 85015253508 is 80535251058.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 85015253508.

It is not an unprimeable number, because it can be changed into a prime (85015253503) 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 15 ways as a sum of consecutive naturals, for example, 9021223 + ... + 9030641.

It is an arithmetic number, because the mean of its divisors is an integer number (4151604380).

Almost surely, 2^85015253508 is an apocalyptic number.

It is an amenable number.

85015253508 is an abundant number, since it is smaller than the sum of its proper divisors (114261756732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85015253508 is a wasteful number, since it uses less digits than its factorization.

85015253508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12788 (or 12786 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 42.

The spelling of 85015253508 in words is "eighty-five billion, fifteen million, two hundred fifty-three thousand, five hundred eight".