85939375525 has 12 divisors (see below), whose sum is σ = 109444957252. Its totient is φ = 66893351040.

The previous prime is 85939375523. The next prime is 85939375531. The reversal of 85939375525 is 52557393958.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6991300996 + 78948074529 = 83614^2 + 280977^2 .

It is not a de Polignac number, because 85939375525 - 2¹ = 85939375523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85939375523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46452792 + ... + 46454641.

Almost surely, 2^85939375525 is an apocalyptic number.

It is an amenable number.

85939375525 is a deficient number, since it is larger than the sum of its proper divisors (23505581727).

85939375525 is a wasteful number, since it uses less digits than its factorization.

85939375525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92907480 (or 92907475 counting only the distinct ones).

The product of its digits is 51030000, while the sum is 61.

The spelling of 85939375525 in words is "eighty-five billion, nine hundred thirty-nine million, three hundred seventy-five thousand, five hundred twenty-five".