56556607 has 2 divisors, whose sum is σ = 56556608. Its totient is φ = 56556606.

The previous prime is 56556593. The next prime is 56556623. The reversal of 56556607 is 70665565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56556607 - 2¹⁵ = 56523839 is a prime.

It is equal to p_3369496 and since 56556607 and 3369496 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56556607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56557607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28278303 + 28278304.

It is an arithmetic number, because the mean of its divisors is an integer number (28278304).

Almost surely, 2^56556607 is an apocalyptic number.

56556607 is a deficient number, since it is larger than the sum of its proper divisors (1).

56556607 is an equidigital number, since it uses as much as digits as its factorization.

56556607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 56556607 is about 7520.4126881442. The cubic root of 56556607 is about 383.8496205695.

The spelling of 56556607 in words is "fifty-six million, five hundred fifty-six thousand, six hundred seven".