85500023 has 4 divisors (see below), whose sum is σ = 97714320. Its totient is φ = 73285728.

The previous prime is 85500011. The next prime is 85500029. The reversal of 85500023 is 32000558.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85500023 - 2⁶ = 85499959 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 (85500029) 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, 6107138 + ... + 6107151.

It is an arithmetic number, because the mean of its divisors is an integer number (24428580).

Almost surely, 2^85500023 is an apocalyptic number.

85500023 is a deficient number, since it is larger than the sum of its proper divisors (12214297).

85500023 is a wasteful number, since it uses less digits than its factorization.

85500023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12214296.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 85500023 is about 9246.6222481509. The cubic root of 85500023 is about 440.5434452484.

The spelling of 85500023 in words is "eighty-five million, five hundred thousand, twenty-three".