85352505125 has 16 divisors (see below), whose sum is σ = 108529744752. Its totient is φ = 66993659200.

The previous prime is 85352505113. The next prime is 85352505143. The reversal of 85352505125 is 52150525358.

It can be written as a sum of positive squares in 8 ways, for example, as 8160773569 + 77191731556 = 90337^2 + 277834^2 .

It is not a de Polignac number, because 85352505125 - 2⁸ = 85352504869 is a prime.

It is a super-2 number, since 2×85352505125² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6435074 + ... + 6448323.

It is an arithmetic number, because the mean of its divisors is an integer number (6783109047).

Almost surely, 2^85352505125 is an apocalyptic number.

It is an amenable number.

85352505125 is a deficient number, since it is larger than the sum of its proper divisors (23177239627).

85352505125 is a wasteful number, since it uses less digits than its factorization.

85352505125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12883465 (or 12883455 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 41.

The spelling of 85352505125 in words is "eighty-five billion, three hundred fifty-two million, five hundred five thousand, one hundred twenty-five".