85278355 has 4 divisors (see below), whose sum is σ = 102334032. Its totient is φ = 68222680.

The previous prime is 85278343. The next prime is 85278359. The reversal of 85278355 is 55387258.

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

It is a de Polignac number, because none of the positive numbers 2^k-85278355 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85278359) 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, 8527831 + ... + 8527840.

It is an arithmetic number, because the mean of its divisors is an integer number (25583508).

Almost surely, 2^85278355 is an apocalyptic number.

85278355 is a deficient number, since it is larger than the sum of its proper divisors (17055677).

85278355 is a wasteful number, since it uses less digits than its factorization.

85278355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17055676.

The product of its digits is 336000, while the sum is 43.

The square root of 85278355 is about 9234.6280379883. The cubic root of 85278355 is about 440.1623970104.

The spelling of 85278355 in words is "eighty-five million, two hundred seventy-eight thousand, three hundred fifty-five".