56788861 has 2 divisors, whose sum is σ = 56788862. Its totient is φ = 56788860.

The previous prime is 56788847. The next prime is 56788883. The reversal of 56788861 is 16888765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56715961 + 72900 = 7531^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 56788861 - 2⁷ = 56788733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56788261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28394430 + 28394431.

It is an arithmetic number, because the mean of its divisors is an integer number (28394431).

Almost surely, 2^56788861 is an apocalyptic number.

It is an amenable number.

56788861 is a deficient number, since it is larger than the sum of its proper divisors (1).

56788861 is an equidigital number, since it uses as much as digits as its factorization.

56788861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 49.

The square root of 56788861 is about 7535.8384404126. The cubic root of 56788861 is about 384.3743388272.

The spelling of 56788861 in words is "fifty-six million, seven hundred eighty-eight thousand, eight hundred sixty-one".