56982005 has 8 divisors (see below), whose sum is σ = 70046424. Its totient is φ = 44473600.

The previous prime is 56981993. The next prime is 56982043. The reversal of 56982005 is 50028965.

It can be written as a sum of positive squares in 4 ways, for example, as 2709316 + 54272689 = 1646^2 + 7367^2 .

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

It is not a de Polignac number, because 56982005 - 2⁶ = 56981941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138776 + ... + 139185.

It is an arithmetic number, because the mean of its divisors is an integer number (8755803).

Almost surely, 2^56982005 is an apocalyptic number.

It is an amenable number.

56982005 is a deficient number, since it is larger than the sum of its proper divisors (13064419).

56982005 is a wasteful number, since it uses less digits than its factorization.

56982005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278007.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 56982005 is about 7548.6425932084. The cubic root of 56982005 is about 384.8096095797.

The spelling of 56982005 in words is "fifty-six million, nine hundred eighty-two thousand, five".