85031500 has 24 divisors (see below), whose sum is σ = 185709888. Its totient is φ = 34012400.

The previous prime is 85031497. The next prime is 85031549. The reversal of 85031500 is 513058.

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, 84532 + ... + 85531.

It is an arithmetic number, because the mean of its divisors is an integer number (7737912).

Almost surely, 2^85031500 is an apocalyptic number.

It is an amenable number.

85031500 is an abundant number, since it is smaller than the sum of its proper divisors (100678388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85031500 is a wasteful number, since it uses less digits than its factorization.

85031500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170082 (or 170070 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 85031500 is about 9221.2526264060. The cubic root of 85031500 is about 439.7372742862.

Adding to 85031500 its reverse (513058), we get a palindrome (85544558).

The spelling of 85031500 in words is "eighty-five million, thirty-one thousand, five hundred".