85585097 has 4 divisors (see below), whose sum is σ = 92168580. Its totient is φ = 79001616.

The previous prime is 85585067. The next prime is 85585099. The reversal of 85585097 is 79058558.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12243001 + 73342096 = 3499^2 + 8564^2 .

It is a cyclic number.

It is not a de Polignac number, because 85585097 - 2⁸ = 85584841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85585099) 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, 3291722 + ... + 3291747.

It is an arithmetic number, because the mean of its divisors is an integer number (23042145).

Almost surely, 2^85585097 is an apocalyptic number.

It is an amenable number.

85585097 is a deficient number, since it is larger than the sum of its proper divisors (6583483).

85585097 is a wasteful number, since it uses less digits than its factorization.

85585097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6583482.

The product of its (nonzero) digits is 504000, while the sum is 47.

The square root of 85585097 is about 9251.2213788234. The cubic root of 85585097 is about 440.6895129255.

The spelling of 85585097 in words is "eighty-five million, five hundred eighty-five thousand, ninety-seven".