85522543 has 4 divisors (see below), whose sum is σ = 85548240. Its totient is φ = 85496848.

The previous prime is 85522517. The next prime is 85522561. The reversal of 85522543 is 34522558.

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 85522543 - 2⁵ = 85522511 is a prime.

It is a super-2 number, since 2×85522543² = 14628210722373698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85522499 and 85522508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85522513) 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, 6955 + ... + 14812.

It is an arithmetic number, because the mean of its divisors is an integer number (21387060).

Almost surely, 2^85522543 is an apocalyptic number.

85522543 is a deficient number, since it is larger than the sum of its proper divisors (25697).

85522543 is a wasteful number, since it uses less digits than its factorization.

85522543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25696.

The product of its digits is 48000, while the sum is 34.

The square root of 85522543 is about 9247.8399099465. The cubic root of 85522543 is about 440.5821203549.

The spelling of 85522543 in words is "eighty-five million, five hundred twenty-two thousand, five hundred forty-three".