85555856 has 10 divisors (see below), whose sum is σ = 165764502. Its totient is φ = 42777920.

The previous prime is 85555793. The next prime is 85555859. The reversal of 85555856 is 65855558.

It can be written as a sum of positive squares in only one way, i.e., 84345856 + 1210000 = 9184^2 + 1100^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85555856.

It is not an unprimeable number, because it can be changed into a prime (85555859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2673605 + ... + 2673636.

Almost surely, 2^85555856 is an apocalyptic number.

It is an amenable number.

85555856 is a deficient number, since it is larger than the sum of its proper divisors (80208646).

85555856 is a wasteful number, since it uses less digits than its factorization.

85555856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5347249 (or 5347243 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 47.

The square root of 85555856 is about 9249.6408578928. The cubic root of 85555856 is about 440.6393185562.

The spelling of 85555856 in words is "eighty-five million, five hundred fifty-five thousand, eight hundred fifty-six".