82123255 has 4 divisors (see below), whose sum is σ = 98547912. Its totient is φ = 65698600.

The previous prime is 82123253. The next prime is 82123267. The reversal of 82123255 is 55232128.

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

It is not a de Polignac number, because 82123255 - 2¹ = 82123253 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 (82123253) 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, 8212321 + ... + 8212330.

It is an arithmetic number, because the mean of its divisors is an integer number (24636978).

Almost surely, 2^82123255 is an apocalyptic number.

82123255 is a deficient number, since it is larger than the sum of its proper divisors (16424657).

82123255 is a wasteful number, since it uses less digits than its factorization.

82123255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16424656.

The product of its digits is 4800, while the sum is 28.

The square root of 82123255 is about 9062.1882015328. The cubic root of 82123255 is about 434.6657140219.

It can be divided in two parts, 821232 and 55, that multiplied together give a triangular number (45167760 = T₉₅₀₄).

The spelling of 82123255 in words is "eighty-two million, one hundred twenty-three thousand, two hundred fifty-five".