56378671 has 2 divisors, whose sum is σ = 56378672. Its totient is φ = 56378670.

The previous prime is 56378669. The next prime is 56378683. The reversal of 56378671 is 17687365.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56378671 - 2¹ = 56378669 is a prime.

Together with 56378669, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56378771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28189335 + 28189336.

It is an arithmetic number, because the mean of its divisors is an integer number (28189336).

Almost surely, 2^56378671 is an apocalyptic number.

56378671 is a deficient number, since it is larger than the sum of its proper divisors (1).

56378671 is an equidigital number, since it uses as much as digits as its factorization.

56378671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 56378671 is about 7508.5731667208. The cubic root of 56378671 is about 383.4466471983.

The spelling of 56378671 in words is "fifty-six million, three hundred seventy-eight thousand, six hundred seventy-one".