56578307 has 2 divisors, whose sum is σ = 56578308. Its totient is φ = 56578306.

The previous prime is 56578297. The next prime is 56578331. The reversal of 56578307 is 70387565.

56578307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56578307 - 2⁶ = 56578243 is a prime.

It is a super-3 number, since 3×56578307³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56578337) 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 as a sum of consecutive naturals, namely, 28289153 + 28289154.

It is an arithmetic number, because the mean of its divisors is an integer number (28289154).

Almost surely, 2^56578307 is an apocalyptic number.

56578307 is a deficient number, since it is larger than the sum of its proper divisors (1).

56578307 is an equidigital number, since it uses as much as digits as its factorization.

56578307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 56578307 is about 7521.8552897540. The cubic root of 56578307 is about 383.8987069164.

The spelling of 56578307 in words is "fifty-six million, five hundred seventy-eight thousand, three hundred seven".