82253579 has 4 divisors (see below), whose sum is σ = 82341384. Its totient is φ = 82165776.

The previous prime is 82253569. The next prime is 82253593. The reversal of 82253579 is 97535228.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82253579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82253569) 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, 42482 + ... + 44375.

It is an arithmetic number, because the mean of its divisors is an integer number (20585346).

Almost surely, 2^82253579 is an apocalyptic number.

82253579 is a deficient number, since it is larger than the sum of its proper divisors (87805).

82253579 is an equidigital number, since it uses as much as digits as its factorization.

82253579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87804.

The product of its digits is 151200, while the sum is 41.

The square root of 82253579 is about 9069.3758881193. The cubic root of 82253579 is about 434.8955207749.

The spelling of 82253579 in words is "eighty-two million, two hundred fifty-three thousand, five hundred seventy-nine".