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56711 is a prime number
BaseRepresentation
bin1101110110000111
32212210102
431312013
53303321
61114315
7324224
oct156607
985712
1056711
1139676
122899b
131ca75
141694b
1511c0b
hexdd87

56711 has 2 divisors, whose sum is σ = 56712. Its totient is φ = 56710.

The previous prime is 56701. The next prime is 56713. The reversal of 56711 is 11765.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56711 is a prime.

It is a super-2 number, since 2×567112 = 6432275042, which contains 22 as substring.

Together with 56713, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 12.

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28355 + 28356.

It is an arithmetic number, because the mean of its divisors is an integer number (28356).

256711 is an apocalyptic number.

56711 is the 107-th centered decagonal number.

56711 is a deficient number, since it is larger than the sum of its proper divisors (1).

56711 is an equidigital number, since it uses as much as digits as its factorization.

56711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 210, while the sum is 20.

The square root of 56711 is about 238.1407147046. The cubic root of 56711 is about 38.4198591577.

It can be divided in two parts, 56 and 711, that added together give a palindrome (767).

The spelling of 56711 in words is "fifty-six thousand, seven hundred eleven".