56957143 has 2 divisors, whose sum is σ = 56957144. Its totient is φ = 56957142.

The previous prime is 56957141. The next prime is 56957161. The reversal of 56957143 is 34175965.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56957143 - 2¹ = 56957141 is a prime.

It is a super-2 number, since 2×56957143² = 6488232277444898, which contains 22 as substring.

Together with 56957141, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 56957096 and 56957105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56957141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28478571 + 28478572.

It is an arithmetic number, because the mean of its divisors is an integer number (28478572).

Almost surely, 2^56957143 is an apocalyptic number.

56957143 is a deficient number, since it is larger than the sum of its proper divisors (1).

56957143 is an equidigital number, since it uses as much as digits as its factorization.

56957143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 56957143 is about 7546.9956274003. The cubic root of 56957143 is about 384.7536356030.

The spelling of 56957143 in words is "fifty-six million, nine hundred fifty-seven thousand, one hundred forty-three".