85075500 has 96 divisors (see below), whose sum is σ = 253693440. Its totient is φ = 22142400.

The previous prime is 85075489. The next prime is 85075517. The reversal of 85075500 is 557058.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63841 + ... + 65159.

It is an arithmetic number, because the mean of its divisors is an integer number (2642640).

Almost surely, 2^85075500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85075500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126846720).

85075500 is an abundant number, since it is smaller than the sum of its proper divisors (168617940).

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

85075500 is a wasteful number, since it uses less digits than its factorization.

85075500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384 (or 1372 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 85075500 is about 9223.6381108541. The cubic root of 85075500 is about 439.8131093344.

The spelling of 85075500 in words is "eighty-five million, seventy-five thousand, five hundred".