85239256 has 16 divisors (see below), whose sum is σ = 160417440. Its totient is φ = 42461280.

The previous prime is 85239239. The next prime is 85239269. The reversal of 85239256 is 65293258.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17491 + ... + 21826.

It is an arithmetic number, because the mean of its divisors is an integer number (10026090).

Almost surely, 2^85239256 is an apocalyptic number.

It is an amenable number.

85239256 is a deficient number, since it is larger than the sum of its proper divisors (75178184).

85239256 is a wasteful number, since it uses less digits than its factorization.

85239256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39594 (or 39590 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 85239256 is about 9232.5108177570. The cubic root of 85239256 is about 440.0951171776.

The spelling of 85239256 in words is "eighty-five million, two hundred thirty-nine thousand, two hundred fifty-six".