85025839 has 4 divisors (see below), whose sum is σ = 87768640. Its totient is φ = 82283040.

The previous prime is 85025827. The next prime is 85025851. The reversal of 85025839 is 93852058.

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

It is an interprime number because it is at equal distance from previous prime (85025827) and next prime (85025851).

It is a cyclic number.

It is not a de Polignac number, because 85025839 - 2⁷ = 85025711 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 (85026839) 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, 1371354 + ... + 1371415.

It is an arithmetic number, because the mean of its divisors is an integer number (21942160).

Almost surely, 2^85025839 is an apocalyptic number.

85025839 is a deficient number, since it is larger than the sum of its proper divisors (2742801).

85025839 is a wasteful number, since it uses less digits than its factorization.

85025839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742800.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 85025839 is about 9220.9456673380. The cubic root of 85025839 is about 439.7275155185.

It can be divided in two parts, 8502 and 5839, that added together give a palindrome (14341).

The spelling of 85025839 in words is "eighty-five million, twenty-five thousand, eight hundred thirty-nine".