85865575 has 12 divisors (see below), whose sum is σ = 107758728. Its totient is φ = 67863200.

The previous prime is 85865557. The next prime is 85865587. The reversal of 85865575 is 57556858.

It is a happy number.

It is not a de Polignac number, because 85865575 - 2¹⁵ = 85832807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18616 + ... + 22765.

It is an arithmetic number, because the mean of its divisors is an integer number (8979894).

Almost surely, 2^85865575 is an apocalyptic number.

85865575 is a deficient number, since it is larger than the sum of its proper divisors (21893153).

85865575 is a wasteful number, since it uses less digits than its factorization.

85865575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41474 (or 41469 counting only the distinct ones).

The product of its digits is 1680000, while the sum is 49.

The square root of 85865575 is about 9266.3679508209. The cubic root of 85865575 is about 441.1703946788.

It can be divided in two parts, 8586 and 5575, that added together give a square (14161 = 119²).

The spelling of 85865575 in words is "eighty-five million, eight hundred sixty-five thousand, five hundred seventy-five".