85472225 has 6 divisors (see below), whose sum is σ = 105985590. Its totient is φ = 68377760.

The previous prime is 85472201. The next prime is 85472227. The reversal of 85472225 is 52227458.

It can be written as a sum of positive squares in 3 ways, for example, as 3243601 + 82228624 = 1801^2 + 9068^2 .

It is a de Polignac number, because none of the positive numbers 2^k-85472225 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85472227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1709420 + ... + 1709469.

It is an arithmetic number, because the mean of its divisors is an integer number (17664265).

Almost surely, 2^85472225 is an apocalyptic number.

It is an amenable number.

85472225 is a deficient number, since it is larger than the sum of its proper divisors (20513365).

85472225 is a wasteful number, since it uses less digits than its factorization.

85472225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418899 (or 3418894 counting only the distinct ones).

The product of its digits is 44800, while the sum is 35.

The square root of 85472225 is about 9245.1189824685. The cubic root of 85472225 is about 440.4956965123.

The spelling of 85472225 in words is "eighty-five million, four hundred seventy-two thousand, two hundred twenty-five".