85087556 has 12 divisors (see below), whose sum is σ = 149021292. Its totient is φ = 42510048.

The previous prime is 85087517. The next prime is 85087571. The reversal of 85087556 is 65578058.

It can be written as a sum of positive squares in 2 ways, for example, as 47141956 + 37945600 = 6866^2 + 6160^2 .

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, 2255 + ... + 13238.

It is an arithmetic number, because the mean of its divisors is an integer number (12418441).

Almost surely, 2^85087556 is an apocalyptic number.

It is an amenable number.

85087556 is a deficient number, since it is larger than the sum of its proper divisors (63933736).

85087556 is a wasteful number, since it uses less digits than its factorization.

85087556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16870 (or 16868 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 44.

The square root of 85087556 is about 9224.2916259190. The cubic root of 85087556 is about 439.8338835737.

The spelling of 85087556 in words is "eighty-five million, eighty-seven thousand, five hundred fifty-six".