85544403 has 32 divisors (see below), whose sum is σ = 141964800. Its totient is φ = 44706816.

The previous prime is 85544377. The next prime is 85544411. The reversal of 85544403 is 30444558.

It is not a de Polignac number, because 85544403 - 2⁶ = 85544339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85544413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7875 + ... + 15267.

It is an arithmetic number, because the mean of its divisors is an integer number (4436400).

Almost surely, 2^85544403 is an apocalyptic number.

85544403 is a deficient number, since it is larger than the sum of its proper divisors (56420397).

85544403 is a wasteful number, since it uses less digits than its factorization.

85544403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7451.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 85544403 is about 9249.0217320536. The cubic root of 85544403 is about 440.6196555058.

The spelling of 85544403 in words is "eighty-five million, five hundred forty-four thousand, four hundred three".