85531544 has 16 divisors (see below), whose sum is σ = 183282000. Its totient is φ = 36656352.

The previous prime is 85531529. The next prime is 85531609. The reversal of 85531544 is 44513558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763619 + ... + 763730.

It is an arithmetic number, because the mean of its divisors is an integer number (11455125).

Almost surely, 2^85531544 is an apocalyptic number.

It is an amenable number.

85531544 is an abundant number, since it is smaller than the sum of its proper divisors (97750456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85531544 is a wasteful number, since it uses less digits than its factorization.

85531544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527362 (or 1527358 counting only the distinct ones).

The product of its digits is 48000, while the sum is 35.

The square root of 85531544 is about 9248.3265513281. The cubic root of 85531544 is about 440.5975764768.

The spelling of 85531544 in words is "eighty-five million, five hundred thirty-one thousand, five hundred forty-four".