85773455 has 4 divisors (see below), whose sum is σ = 102928152. Its totient is φ = 68618760.

The previous prime is 85773431. The next prime is 85773473. The reversal of 85773455 is 55437758.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55437758 = 2 ⋅27718879.

It is not a de Polignac number, because 85773455 - 2¹⁰ = 85772431 is a prime.

It is a Duffinian number.

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, 8577341 + ... + 8577350.

It is an arithmetic number, because the mean of its divisors is an integer number (25732038).

Almost surely, 2^85773455 is an apocalyptic number.

85773455 is a deficient number, since it is larger than the sum of its proper divisors (17154697).

85773455 is a wasteful number, since it uses less digits than its factorization.

85773455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17154696.

The product of its digits is 588000, while the sum is 44.

The square root of 85773455 is about 9261.3959530948. The cubic root of 85773455 is about 441.0125698499.

The spelling of 85773455 in words is "eighty-five million, seven hundred seventy-three thousand, four hundred fifty-five".