85557432 has 16 divisors (see below), whose sum is σ = 213893640. Its totient is φ = 28519136.

The previous prime is 85557397. The next prime is 85557443. The reversal of 85557432 is 23475558.

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, 1782423 + ... + 1782470.

Almost surely, 2^85557432 is an apocalyptic number.

It is an amenable number.

85557432 is an abundant number, since it is smaller than the sum of its proper divisors (128336208).

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

85557432 is a wasteful number, since it uses less digits than its factorization.

85557432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564902 (or 3564898 counting only the distinct ones).

The product of its digits is 168000, while the sum is 39.

The square root of 85557432 is about 9249.7260499974. The cubic root of 85557432 is about 440.6420241700.

The spelling of 85557432 in words is "eighty-five million, five hundred fifty-seven thousand, four hundred thirty-two".