85311125 has 8 divisors (see below), whose sum is σ = 106468440. Its totient is φ = 68248800.

The previous prime is 85311113. The next prime is 85311137. The reversal of 85311125 is 52111358.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85311113) and next prime (85311137).

It can be written as a sum of positive squares in 4 ways, for example, as 1002001 + 84309124 = 1001^2 + 9182^2 .

It is not a de Polignac number, because 85311125 - 2¹² = 85307029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85311094 and 85311103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341120 + ... + 341369.

It is an arithmetic number, because the mean of its divisors is an integer number (13308555).

Almost surely, 2^85311125 is an apocalyptic number.

It is an amenable number.

85311125 is a deficient number, since it is larger than the sum of its proper divisors (21157315).

85311125 is an equidigital number, since it uses as much as digits as its factorization.

85311125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682504 (or 682494 counting only the distinct ones).

The product of its digits is 1200, while the sum is 26.

The square root of 85311125 is about 9236.4021675109. The cubic root of 85311125 is about 440.2187703404.

The spelling of 85311125 in words is "eighty-five million, three hundred eleven thousand, one hundred twenty-five".