85543012 has 24 divisors (see below), whose sum is σ = 154909440. Its totient is φ = 41290080.

The previous prime is 85542983. The next prime is 85543013. The reversal of 85543012 is 21034558.

It is not an unprimeable number, because it can be changed into a prime (85543013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83439 + ... + 84457.

It is an arithmetic number, because the mean of its divisors is an integer number (6454560).

Almost surely, 2^85543012 is an apocalyptic number.

It is an amenable number.

85543012 is a deficient number, since it is larger than the sum of its proper divisors (69366428).

85543012 is a wasteful number, since it uses less digits than its factorization.

85543012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 85543012 is about 9248.9465346060. The cubic root of 85543012 is about 440.6172672519.

The spelling of 85543012 in words is "eighty-five million, five hundred forty-three thousand, twelve".