56005307 has 4 divisors (see below), whose sum is σ = 57307800. Its totient is φ = 54702816.

The previous prime is 56005291. The next prime is 56005343. The reversal of 56005307 is 70350065.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56005307 - 2⁴ = 56005291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56005357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651182 + ... + 651267.

It is an arithmetic number, because the mean of its divisors is an integer number (14326950).

Almost surely, 2^56005307 is an apocalyptic number.

56005307 is a deficient number, since it is larger than the sum of its proper divisors (1302493).

56005307 is a wasteful number, since it uses less digits than its factorization.

56005307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302492.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 56005307 is about 7483.6693540001. The cubic root of 56005307 is about 382.5983217987.

The spelling of 56005307 in words is "fifty-six million, five thousand, three hundred seven".