85280656 has 40 divisors (see below), whose sum is σ = 171739008. Its totient is φ = 40992000.

The previous prime is 85280639. The next prime is 85280669. The reversal of 85280656 is 65608258.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45661 + ... + 47491.

Almost surely, 2^85280656 is an apocalyptic number.

It is an amenable number.

85280656 is an abundant number, since it is smaller than the sum of its proper divisors (86458352).

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

85280656 is a wasteful number, since it uses less digits than its factorization.

85280656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951 (or 1945 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 85280656 is about 9234.7526225666. The cubic root of 85280656 is about 440.1663558288.

The spelling of 85280656 in words is "eighty-five million, two hundred eighty thousand, six hundred fifty-six".