85081200025 has 12 divisors (see below), whose sum is σ = 105938457724. Its totient is φ = 67782528000.

The previous prime is 85081200023. The next prime is 85081200067. The reversal of 85081200025 is 52000218058.

It can be written as a sum of positive squares in 6 ways, for example, as 244734736 + 84836465289 = 15644^2 + 291267^2 .

It is not a de Polignac number, because 85081200025 - 2¹ = 85081200023 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85081200025.

It is not an unprimeable number, because it can be changed into a prime (85081200023) 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, 7054656 + ... + 7066705.

Almost surely, 2^85081200025 is an apocalyptic number.

It is an amenable number.

85081200025 is a deficient number, since it is larger than the sum of its proper divisors (20857257699).

85081200025 is a wasteful number, since it uses less digits than its factorization.

85081200025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14121612 (or 14121607 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The spelling of 85081200025 in words is "eighty-five billion, eighty-one million, two hundred thousand, twenty-five".