85561804 has 12 divisors (see below), whose sum is σ = 149816128. Its totient is φ = 42757200.

The previous prime is 85561789. The next prime is 85561849. The reversal of 85561804 is 40816558.

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, 4069 + ... + 13699.

Almost surely, 2^85561804 is an apocalyptic number.

It is an amenable number.

85561804 is a deficient number, since it is larger than the sum of its proper divisors (64254324).

85561804 is a wasteful number, since it uses less digits than its factorization.

85561804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11856 (or 11854 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 85561804 is about 9249.9623783019. The cubic root of 85561804 is about 440.6495296707.

The spelling of 85561804 in words is "eighty-five million, five hundred sixty-one thousand, eight hundred four".