85558994 has 16 divisors (see below), whose sum is σ = 136258200. Its totient is φ = 40153344.

The previous prime is 85558969. The next prime is 85558997. The reversal of 85558994 is 49985558.

It can be written as a sum of positive squares in 4 ways, for example, as 53217025 + 32341969 = 7295^2 + 5687^2 .

It is not an unprimeable number, because it can be changed into a prime (85558997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9992 + ... + 16460.

Almost surely, 2^85558994 is an apocalyptic number.

85558994 is a deficient number, since it is larger than the sum of its proper divisors (50699206).

85558994 is a wasteful number, since it uses less digits than its factorization.

85558994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6877.

The product of its digits is 2592000, while the sum is 53.

The square root of 85558994 is about 9249.8104845451. The cubic root of 85558994 is about 440.6447057163.

The spelling of 85558994 in words is "eighty-five million, five hundred fifty-eight thousand, nine hundred ninety-four".