82660051 has 8 divisors (see below), whose sum is σ = 87105680. Its totient is φ = 78223968.

The previous prime is 82660031. The next prime is 82660087. The reversal of 82660051 is 15006628.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82660051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82660021) 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, 21745 + ... + 25261.

It is an arithmetic number, because the mean of its divisors is an integer number (10888210).

Almost surely, 2^82660051 is an apocalyptic number.

82660051 is a deficient number, since it is larger than the sum of its proper divisors (4445629).

82660051 is a wasteful number, since it uses less digits than its factorization.

82660051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 82660051 is about 9091.7573108833. The cubic root of 82660051 is about 435.6107174682.

Adding to 82660051 its reverse (15006628), we get a palindrome (97666679).

The spelling of 82660051 in words is "eighty-two million, six hundred sixty thousand, fifty-one".