85603563 has 12 divisors (see below), whose sum is σ = 127913760. Its totient is φ = 55100976.

The previous prime is 85603549. The next prime is 85603579. The reversal of 85603563 is 36530658.

85603563 is a `hidden beast` number, since 8 + 560 + 35 + 63 = 666.

It is not a de Polignac number, because 85603563 - 2⁶ = 85603499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85603363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163731 + ... + 164252.

It is an arithmetic number, because the mean of its divisors is an integer number (10659480).

Almost surely, 2^85603563 is an apocalyptic number.

85603563 is a deficient number, since it is larger than the sum of its proper divisors (42310197).

85603563 is a wasteful number, since it uses less digits than its factorization.

85603563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328018 (or 328015 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 85603563 is about 9252.2193553763. The cubic root of 85603563 is about 440.7212053098.

The spelling of 85603563 in words is "eighty-five million, six hundred three thousand, five hundred sixty-three".