85203508 has 24 divisors (see below), whose sum is σ = 166115880. Its totient is φ = 37968000.

The previous prime is 85203497. The next prime is 85203529. The reversal of 85203508 is 80530258.

It can be written as a sum of positive squares in 4 ways, for example, as 47524 + 85155984 = 218^2 + 9228^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85203508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26743 + ... + 29758.

It is an arithmetic number, because the mean of its divisors is an integer number (6921495).

Almost surely, 2^85203508 is an apocalyptic number.

It is an amenable number.

85203508 is a deficient number, since it is larger than the sum of its proper divisors (80912372).

85203508 is a wasteful number, since it uses less digits than its factorization.

85203508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56547 (or 56545 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 85203508 is about 9230.5746300000. The cubic root of 85203508 is about 440.0335855906.

The spelling of 85203508 in words is "eighty-five million, two hundred three thousand, five hundred eight".