56486887 has 2 divisors, whose sum is σ = 56486888. Its totient is φ = 56486886.

The previous prime is 56486879. The next prime is 56486891. The reversal of 56486887 is 78868465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56486887 - 2³ = 56486879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56486387) 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, 28243443 + 28243444.

It is an arithmetic number, because the mean of its divisors is an integer number (28243444).

Almost surely, 2^56486887 is an apocalyptic number.

56486887 is a deficient number, since it is larger than the sum of its proper divisors (1).

56486887 is an equidigital number, since it uses as much as digits as its factorization.

56486887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2580480, while the sum is 52.

The square root of 56486887 is about 7515.7758747850. The cubic root of 56486887 is about 383.6918258607.

The spelling of 56486887 in words is "fifty-six million, four hundred eighty-six thousand, eight hundred eighty-seven".