5657181311 has 4 divisors (see below), whose sum is σ = 5753065800. Its totient is φ = 5561296824.

The previous prime is 5657181253. The next prime is 5657181331. The reversal of 5657181311 is 1131817565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1131817565 = 5 ⋅226363513.

It is a cyclic number.

It is not a de Polignac number, because 5657181311 - 2¹⁴ = 5657164927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5657181331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47942156 + ... + 47942273.

It is an arithmetic number, because the mean of its divisors is an integer number (1438266450).

Almost surely, 2^5657181311 is an apocalyptic number.

5657181311 is a deficient number, since it is larger than the sum of its proper divisors (95884489).

5657181311 is an equidigital number, since it uses as much as digits as its factorization.

5657181311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95884488.

The product of its digits is 25200, while the sum is 38.

The square root of 5657181311 is about 75214.2360926441. The cubic root of 5657181311 is about 1781.8317749254.

Adding to 5657181311 its reverse (1131817565), we get a palindrome (6788998876).

The spelling of 5657181311 in words is "five billion, six hundred fifty-seven million, one hundred eighty-one thousand, three hundred eleven".