85561888 has 24 divisors (see below), whose sum is σ = 169344000. Its totient is φ = 42553920.

The previous prime is 85561877. The next prime is 85561907. The reversal of 85561888 is 88816558.

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, 888 + ... + 13111.

It is an arithmetic number, because the mean of its divisors is an integer number (7056000).

Almost surely, 2^85561888 is an apocalyptic number.

It is an amenable number.

85561888 is a deficient number, since it is larger than the sum of its proper divisors (83782112).

85561888 is a wasteful number, since it uses less digits than its factorization.

85561888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14200 (or 14192 counting only the distinct ones).

The product of its digits is 614400, while the sum is 49.

The square root of 85561888 is about 9249.9669188598. The cubic root of 85561888 is about 440.6496738727.

The spelling of 85561888 in words is "eighty-five million, five hundred sixty-one thousand, eight hundred eighty-eight".