85085825 has 12 divisors (see below), whose sum is σ = 115098288. Its totient is φ = 61880400.

The previous prime is 85085821. The next prime is 85085827. The reversal of 85085825 is 52858058.

It is not a de Polignac number, because 85085825 - 2² = 85085821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85085821) 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, 154427 + ... + 154976.

It is an arithmetic number, because the mean of its divisors is an integer number (9591524).

Almost surely, 2^85085825 is an apocalyptic number.

It is an amenable number.

85085825 is a deficient number, since it is larger than the sum of its proper divisors (30012463).

85085825 is a wasteful number, since it uses less digits than its factorization.

85085825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309424 (or 309419 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 41.

The square root of 85085825 is about 9224.1977970987. The cubic root of 85085825 is about 439.8309009299.

The spelling of 85085825 in words is "eighty-five million, eighty-five thousand, eight hundred twenty-five".