85255177975 has 12 divisors (see below), whose sum is σ = 115327004760. Its totient is φ = 62003765600.

The previous prime is 85255177933. The next prime is 85255177999. The reversal of 85255177975 is 57977155258.

It is a happy number.

It is not a de Polignac number, because 85255177975 - 2¹¹ = 85255175927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155009140 + ... + 155009689.

It is an arithmetic number, because the mean of its divisors is an integer number (9610583730).

Almost surely, 2^85255177975 is an apocalyptic number.

85255177975 is a deficient number, since it is larger than the sum of its proper divisors (30071826785).

85255177975 is a wasteful number, since it uses less digits than its factorization.

85255177975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310018850 (or 310018845 counting only the distinct ones).

The product of its digits is 30870000, while the sum is 61.

The spelling of 85255177975 in words is "eighty-five billion, two hundred fifty-five million, one hundred seventy-seven thousand, nine hundred seventy-five".