5657459081 has 2 divisors, whose sum is σ = 5657459082. Its totient is φ = 5657459080.

The previous prime is 5657459077. The next prime is 5657459089. The reversal of 5657459081 is 1809547565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4080654400 + 1576804681 = 63880^2 + 39709^2 .

It is a cyclic number.

It is not a de Polignac number, because 5657459081 - 2² = 5657459077 is a prime.

It is a super-2 number, since 2×5657459081² = 64013686506378729122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5657459089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828729540 + 2828729541.

It is an arithmetic number, because the mean of its divisors is an integer number (2828729541).

Almost surely, 2^5657459081 is an apocalyptic number.

It is an amenable number.

5657459081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5657459081 is an equidigital number, since it uses as much as digits as its factorization.

5657459081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000, while the sum is 50.

The square root of 5657459081 is about 75216.0825954131. The cubic root of 5657459081 is about 1781.8609373466.

The spelling of 5657459081 in words is "five billion, six hundred fifty-seven million, four hundred fifty-nine thousand, eighty-one".