8219255 has 8 divisors (see below), whose sum is σ = 10759824. Its totient is φ = 5977600.

The previous prime is 8219243. The next prime is 8219269. The reversal of 8219255 is 5529128.

8219255 = 217² + 218² + ... + 326².

8219255 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8219255 - 2¹⁴ = 8202871 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 7 ways as a sum of consecutive naturals, for example, 74666 + ... + 74775.

It is an arithmetic number, because the mean of its divisors is an integer number (1344978).

Almost surely, 2^8219255 is an apocalyptic number.

8219255 is a deficient number, since it is larger than the sum of its proper divisors (2540569).

8219255 is a wasteful number, since it uses less digits than its factorization.

8219255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149457.

The product of its digits is 7200, while the sum is 32.

The square root of 8219255 is about 2866.9243101275. The cubic root of 8219255 is about 201.8106826709.

The spelling of 8219255 in words is "eight million, two hundred nineteen thousand, two hundred fifty-five".