85277455 has 4 divisors (see below), whose sum is σ = 102332952. Its totient is φ = 68221960.

The previous prime is 85277449. The next prime is 85277459. The reversal of 85277455 is 55477258.

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

It is not a de Polignac number, because 85277455 - 2³ = 85277447 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 (85277459) 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, 8527741 + ... + 8527750.

It is an arithmetic number, because the mean of its divisors is an integer number (25583238).

Almost surely, 2^85277455 is an apocalyptic number.

85277455 is a deficient number, since it is larger than the sum of its proper divisors (17055497).

85277455 is a wasteful number, since it uses less digits than its factorization.

85277455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17055496.

The product of its digits is 392000, while the sum is 43.

The square root of 85277455 is about 9234.5793082306. The cubic root of 85277455 is about 440.1608485614.

The spelling of 85277455 in words is "eighty-five million, two hundred seventy-seven thousand, four hundred fifty-five".