85405063 has 8 divisors (see below), whose sum is σ = 88655040. Its totient is φ = 82214880.

The previous prime is 85405051. The next prime is 85405081. The reversal of 85405063 is 36050458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85405063 - 2²¹ = 83307911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85405013) 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, 12028 + ... + 17761.

It is an arithmetic number, because the mean of its divisors is an integer number (11081880).

Almost surely, 2^85405063 is an apocalyptic number.

85405063 is a deficient number, since it is larger than the sum of its proper divisors (3249977).

85405063 is a wasteful number, since it uses less digits than its factorization.

85405063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29897.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 85405063 is about 9241.4859735867. The cubic root of 85405063 is about 440.3802893365.

The spelling of 85405063 in words is "eighty-five million, four hundred five thousand, sixty-three".