82506241 has 4 divisors (see below), whose sum is σ = 82539184. Its totient is φ = 82473300.

The previous prime is 82506223. The next prime is 82506269. The reversal of 82506241 is 14260528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82506241 - 2⁹ = 82505729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82506211) 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, 12375 + ... + 17836.

It is an arithmetic number, because the mean of its divisors is an integer number (20634796).

Almost surely, 2^82506241 is an apocalyptic number.

It is an amenable number.

82506241 is a deficient number, since it is larger than the sum of its proper divisors (32943).

82506241 is a wasteful number, since it uses less digits than its factorization.

82506241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32942.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 82506241 is about 9083.2946115383. The cubic root of 82506241 is about 435.3403616180.

Adding to 82506241 its reverse (14260528), we get a palindrome (96766769).

The spelling of 82506241 in words is "eighty-two million, five hundred six thousand, two hundred forty-one".