56005005 has 32 divisors (see below), whose sum is σ = 103442688. Its totient is φ = 25344000.

The previous prime is 56004979. The next prime is 56005009. The reversal of 56005005 is 50050065.

56005005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56005005 - 2⁹ = 56004493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56005009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7965 + ... + 13245.

It is an arithmetic number, because the mean of its divisors is an integer number (3232584).

Almost surely, 2^56005005 is an apocalyptic number.

It is an amenable number.

56005005 is a deficient number, since it is larger than the sum of its proper divisors (47437683).

56005005 is a wasteful number, since it uses less digits than its factorization.

56005005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 56005005 is about 7483.6491767052. The cubic root of 56005005 is about 382.5976340966.

The spelling of 56005005 in words is "fifty-six million, five thousand, five".