56087767 has 2 divisors, whose sum is σ = 56087768. Its totient is φ = 56087766.

The previous prime is 56087747. The next prime is 56087771. The reversal of 56087767 is 76778065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56087767 - 2²³ = 47699159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56087747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28043883 + 28043884.

It is an arithmetic number, because the mean of its divisors is an integer number (28043884).

Almost surely, 2^56087767 is an apocalyptic number.

56087767 is a deficient number, since it is larger than the sum of its proper divisors (1).

56087767 is an equidigital number, since it uses as much as digits as its factorization.

56087767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 46.

The square root of 56087767 is about 7489.1766570164. The cubic root of 56087767 is about 382.7860039315.

The spelling of 56087767 in words is "fifty-six million, eighty-seven thousand, seven hundred sixty-seven".