85656125 has 8 divisors (see below), whose sum is σ = 106899000. Its totient is φ = 68524800.

The previous prime is 85656119. The next prime is 85656127. The reversal of 85656125 is 52165658.

It can be written as a sum of positive squares in 4 ways, for example, as 813604 + 84842521 = 902^2 + 9211^2 .

It is not a de Polignac number, because 85656125 - 2¹⁸ = 85393981 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85656127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342500 + ... + 342749.

It is an arithmetic number, because the mean of its divisors is an integer number (13362375).

Almost surely, 2^85656125 is an apocalyptic number.

It is an amenable number.

85656125 is a deficient number, since it is larger than the sum of its proper divisors (21242875).

85656125 is an equidigital number, since it uses as much as digits as its factorization.

85656125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685264 (or 685254 counting only the distinct ones).

The product of its digits is 72000, while the sum is 38.

The square root of 85656125 is about 9255.0594271458. The cubic root of 85656125 is about 440.8113902177.

The spelling of 85656125 in words is "eighty-five million, six hundred fifty-six thousand, one hundred twenty-five".