56709071 has 2 divisors, whose sum is σ = 56709072. Its totient is φ = 56709070.

The previous prime is 56709067. The next prime is 56709073. The reversal of 56709071 is 17090765.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56709071 - 2² = 56709067 is a prime.

Together with 56709073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56709073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28354535 + 28354536.

It is an arithmetic number, because the mean of its divisors is an integer number (28354536).

Almost surely, 2^56709071 is an apocalyptic number.

56709071 is a deficient number, since it is larger than the sum of its proper divisors (1).

56709071 is an equidigital number, since it uses as much as digits as its factorization.

56709071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 56709071 is about 7530.5425435356. The cubic root of 56709071 is about 384.1942354119.

It can be divided in two parts, 5670 and 9071, that added together give a palindrome (14741).

The spelling of 56709071 in words is "fifty-six million, seven hundred nine thousand, seventy-one".