85015225 has 6 divisors (see below), whose sum is σ = 105418910. Its totient is φ = 68012160.

The previous prime is 85015207. The next prime is 85015243. The reversal of 85015225 is 52251058.

It is an interprime number because it is at equal distance from previous prime (85015207) and next prime (85015243).

It can be written as a sum of positive squares in 3 ways, for example, as 18249984 + 66765241 = 4272^2 + 8171^2 .

It is not a de Polignac number, because 85015225 - 2²³ = 76626617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85015193 and 85015202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1700280 + ... + 1700329.

Almost surely, 2^85015225 is an apocalyptic number.

It is an amenable number.

85015225 is a deficient number, since it is larger than the sum of its proper divisors (20403685).

85015225 is a wasteful number, since it uses less digits than its factorization.

85015225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400619 (or 3400614 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 85015225 is about 9220.3701118773. The cubic root of 85015225 is about 439.7092173081.

The spelling of 85015225 in words is "eighty-five million, fifteen thousand, two hundred twenty-five".