56886287 has 2 divisors, whose sum is σ = 56886288. Its totient is φ = 56886286.

The previous prime is 56886259. The next prime is 56886293. The reversal of 56886287 is 78268865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56886287 - 2⁸ = 56886031 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56886217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28443143 + 28443144.

It is an arithmetic number, because the mean of its divisors is an integer number (28443144).

Almost surely, 2^56886287 is an apocalyptic number.

56886287 is a deficient number, since it is larger than the sum of its proper divisors (1).

56886287 is an equidigital number, since it uses as much as digits as its factorization.

56886287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1290240, while the sum is 50.

The square root of 56886287 is about 7542.2998481895. The cubic root of 56886287 is about 384.5940219304.

The spelling of 56886287 in words is "fifty-six million, eight hundred eighty-six thousand, two hundred eighty-seven".