82557005 has 8 divisors (see below), whose sum is σ = 103375872. Its totient is φ = 63173968.

The previous prime is 82556993. The next prime is 82557047. The reversal of 82557005 is 50075528.

It is a happy number.

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 82557005 - 2¹⁰ = 82555981 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, 358829 + ... + 359058.

It is an arithmetic number, because the mean of its divisors is an integer number (12921984).

Almost surely, 2^82557005 is an apocalyptic number.

It is an amenable number.

82557005 is a deficient number, since it is larger than the sum of its proper divisors (20818867).

82557005 is a wasteful number, since it uses less digits than its factorization.

82557005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717915.

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 82557005 is about 9086.0885423817. The cubic root of 82557005 is about 435.4296279448.

The spelling of 82557005 in words is "eighty-two million, five hundred fifty-seven thousand, five".