85025647 has 4 divisors (see below), whose sum is σ = 97172176. Its totient is φ = 72879120.

The previous prime is 85025599. The next prime is 85025657. The reversal of 85025647 is 74652058.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85025647 - 2¹⁹ = 84501359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85025657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6073254 + ... + 6073267.

It is an arithmetic number, because the mean of its divisors is an integer number (24293044).

Almost surely, 2^85025647 is an apocalyptic number.

85025647 is a deficient number, since it is larger than the sum of its proper divisors (12146529).

85025647 is a wasteful number, since it uses less digits than its factorization.

85025647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12146528.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 85025647 is about 9220.9352562525. The cubic root of 85025647 is about 439.7271845299.

The spelling of 85025647 in words is "eighty-five million, twenty-five thousand, six hundred forty-seven".