85256436 has 48 divisors (see below), whose sum is σ = 208220544. Its totient is φ = 27121536.

The previous prime is 85256419. The next prime is 85256453. The reversal of 85256436 is 63465258.

It is an interprime number because it is at equal distance from previous prime (85256419) and next prime (85256453).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 85256394 and 85256403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21721 + ... + 25343.

It is an arithmetic number, because the mean of its divisors is an integer number (4337928).

Almost surely, 2^85256436 is an apocalyptic number.

It is an amenable number.

85256436 is an abundant number, since it is smaller than the sum of its proper divisors (122964108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85256436 is a wasteful number, since it uses less digits than its factorization.

85256436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720 (or 3718 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 85256436 is about 9233.4411786722. The cubic root of 85256436 is about 440.1246822964.

The spelling of 85256436 in words is "eighty-five million, two hundred fifty-six thousand, four hundred thirty-six".