82520243 has 8 divisors (see below), whose sum is σ = 88947936. Its totient is φ = 76104000.

The previous prime is 82520237. The next prime is 82520267. The reversal of 82520243 is 34202528.

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

It is a cyclic number.

It is not a de Polignac number, because 82520243 - 2²² = 78325939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82520143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17543 + ... + 21743.

It is an arithmetic number, because the mean of its divisors is an integer number (11118492).

Almost surely, 2^82520243 is an apocalyptic number.

82520243 is a deficient number, since it is larger than the sum of its proper divisors (6427693).

82520243 is a wasteful number, since it uses less digits than its factorization.

82520243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 82520243 is about 9084.0653344194. The cubic root of 82520243 is about 435.3649871933.

The spelling of 82520243 in words is "eighty-two million, five hundred twenty thousand, two hundred forty-three".