85500253 has 4 divisors (see below), whose sum is σ = 86461020. Its totient is φ = 84539488.

The previous prime is 85500251. The next prime is 85500257. The reversal of 85500253 is 35200558.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35200558 = 2 ⋅17600279.

It can be written as a sum of positive squares in 2 ways, for example, as 19598329 + 65901924 = 4427^2 + 8118^2 .

It is a cyclic number.

It is not a de Polignac number, because 85500253 - 2¹ = 85500251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85500251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480250 + ... + 480427.

It is an arithmetic number, because the mean of its divisors is an integer number (21615255).

Almost surely, 2^85500253 is an apocalyptic number.

It is an amenable number.

85500253 is a deficient number, since it is larger than the sum of its proper divisors (960767).

85500253 is an equidigital number, since it uses as much as digits as its factorization.

85500253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960766.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 85500253 is about 9246.6346851165. The cubic root of 85500253 is about 440.5438402772.

The spelling of 85500253 in words is "eighty-five million, five hundred thousand, two hundred fifty-three".