56907287 has 2 divisors, whose sum is σ = 56907288. Its totient is φ = 56907286.

The previous prime is 56907283. The next prime is 56907341. The reversal of 56907287 is 78270965.

56907287 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 not a de Polignac number, because 56907287 - 2² = 56907283 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56907283) 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, 28453643 + 28453644.

It is an arithmetic number, because the mean of its divisors is an integer number (28453644).

Almost surely, 2^56907287 is an apocalyptic number.

56907287 is a deficient number, since it is larger than the sum of its proper divisors (1).

56907287 is an equidigital number, since it uses as much as digits as its factorization.

56907287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 56907287 is about 7543.6918680445. The cubic root of 56907287 is about 384.6413413651.

The spelling of 56907287 in words is "fifty-six million, nine hundred seven thousand, two hundred eighty-seven".