85005247855 has 8 divisors (see below), whose sum is σ = 111279597264. Its totient is φ = 61821998400.

The previous prime is 85005247841. The next prime is 85005247897. The reversal of 85005247855 is 55874250058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85005247855 - 2⁵ = 85005247823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85005247799 and 85005247808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772774926 + ... + 772775035.

It is an arithmetic number, because the mean of its divisors is an integer number (13909949658).

Almost surely, 2^85005247855 is an apocalyptic number.

85005247855 is a deficient number, since it is larger than the sum of its proper divisors (26274349409).

85005247855 is a wasteful number, since it uses less digits than its factorization.

85005247855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545549977.

The product of its (nonzero) digits is 2240000, while the sum is 49.

The spelling of 85005247855 in words is "eighty-five billion, five million, two hundred forty-seven thousand, eight hundred fifty-five".