56605271 has 2 divisors, whose sum is σ = 56605272. Its totient is φ = 56605270.

The previous prime is 56605267. The next prime is 56605273. The reversal of 56605271 is 17250665.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56605271 - 2² = 56605267 is a prime.

Together with 56605273, 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 (56605273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28302635 + 28302636.

It is an arithmetic number, because the mean of its divisors is an integer number (28302636).

Almost surely, 2^56605271 is an apocalyptic number.

56605271 is a deficient number, since it is larger than the sum of its proper divisors (1).

56605271 is an equidigital number, since it uses as much as digits as its factorization.

56605271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 56605271 is about 7523.6474531972. The cubic root of 56605271 is about 383.9596831768.

The spelling of 56605271 in words is "fifty-six million, six hundred five thousand, two hundred seventy-one".