56987267 has 2 divisors, whose sum is σ = 56987268. Its totient is φ = 56987266.

The previous prime is 56987239. The next prime is 56987299. The reversal of 56987267 is 76278965.

56987267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56987267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56987167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28493633 + 28493634.

It is an arithmetic number, because the mean of its divisors is an integer number (28493634).

Almost surely, 2^56987267 is an apocalyptic number.

56987267 is a deficient number, since it is larger than the sum of its proper divisors (1).

56987267 is an equidigital number, since it uses as much as digits as its factorization.

56987267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 50.

The square root of 56987267 is about 7548.9911246471. The cubic root of 56987267 is about 384.8214542890.

The spelling of 56987267 in words is "fifty-six million, nine hundred eighty-seven thousand, two hundred sixty-seven".