85487256 has 48 divisors (see below), whose sum is σ = 233376000. Its totient is φ = 28268352.

The previous prime is 85487239. The next prime is 85487257. The reversal of 85487256 is 65278458.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85487257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4470 + ... + 13818.

It is an arithmetic number, because the mean of its divisors is an integer number (4862000).

Almost surely, 2^85487256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85487256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116688000).

85487256 is an abundant number, since it is smaller than the sum of its proper divisors (147888744).

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

85487256 is a wasteful number, since it uses less digits than its factorization.

85487256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9488 (or 9481 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 85487256 is about 9245.9318621759. The cubic root of 85487256 is about 440.5215166066.

The spelling of 85487256 in words is "eighty-five million, four hundred eighty-seven thousand, two hundred fifty-six".