56870279 has 2 divisors, whose sum is σ = 56870280. Its totient is φ = 56870278.

The previous prime is 56870263. The next prime is 56870311. The reversal of 56870279 is 97207865.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56870279 - 2⁴ = 56870263 is a prime.

It is a Sophie Germain 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 (56870579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28435139 + 28435140.

It is an arithmetic number, because the mean of its divisors is an integer number (28435140).

Almost surely, 2^56870279 is an apocalyptic number.

56870279 is a deficient number, since it is larger than the sum of its proper divisors (1).

56870279 is an equidigital number, since it uses as much as digits as its factorization.

56870279 is an evil number, because the sum of its binary digits is even.

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

The square root of 56870279 is about 7541.2385587515. The cubic root of 56870279 is about 384.5579431786.

The spelling of 56870279 in words is "fifty-six million, eight hundred seventy thousand, two hundred seventy-nine".