85547031 has 4 divisors (see below), whose sum is σ = 114062712. Its totient is φ = 57031352.

The previous prime is 85547029. The next prime is 85547041. The reversal of 85547031 is 13074558.

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 85547031 - 2¹ = 85547029 is a prime.

It is a super-2 number, since 2×85547031² = 14636589025829922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85546983 and 85547001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85547041) 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, 14257836 + ... + 14257841.

It is an arithmetic number, because the mean of its divisors is an integer number (28515678).

Almost surely, 2^85547031 is an apocalyptic number.

85547031 is a deficient number, since it is larger than the sum of its proper divisors (28515681).

85547031 is a wasteful number, since it uses less digits than its factorization.

85547031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28515680.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 85547031 is about 9249.1638000416. The cubic root of 85547031 is about 440.6241675353.

The spelling of 85547031 in words is "eighty-five million, five hundred forty-seven thousand, thirty-one".