85388455 has 4 divisors (see below), whose sum is σ = 102466152. Its totient is φ = 68310760.

The previous prime is 85388453. The next prime is 85388503. The reversal of 85388455 is 55488358.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 85388455 - 2¹ = 85388453 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 (85388453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8538841 + ... + 8538850.

It is an arithmetic number, because the mean of its divisors is an integer number (25616538).

Almost surely, 2^85388455 is an apocalyptic number.

85388455 is a deficient number, since it is larger than the sum of its proper divisors (17077697).

85388455 is a wasteful number, since it uses less digits than its factorization.

85388455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17077696.

The product of its digits is 768000, while the sum is 46.

The square root of 85388455 is about 9240.5873731057. The cubic root of 85388455 is about 440.3517418097.

The spelling of 85388455 in words is "eighty-five million, three hundred eighty-eight thousand, four hundred fifty-five".