5665744057 has 4 divisors (see below), whose sum is σ = 5666775796. Its totient is φ = 5664712320.

The previous prime is 5665744033. The next prime is 5665744061. The reversal of 5665744057 is 7504475665.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4020954921 + 1644789136 = 63411^2 + 40556^2 .

It is a cyclic number.

It is not a de Polignac number, because 5665744057 - 2³¹ = 3518260409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5665744057.

It is not an unprimeable number, because it can be changed into a prime (5665744067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507588 + ... + 518629.

It is an arithmetic number, because the mean of its divisors is an integer number (1416693949).

Almost surely, 2^5665744057 is an apocalyptic number.

It is an amenable number.

5665744057 is a deficient number, since it is larger than the sum of its proper divisors (1031739).

5665744057 is a wasteful number, since it uses less digits than its factorization.

5665744057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031738.

The product of its (nonzero) digits is 3528000, while the sum is 49.

The square root of 5665744057 is about 75271.1369450469. The cubic root of 5665744057 is about 1782.7303190734.

The spelling of 5665744057 in words is "five billion, six hundred sixty-five million, seven hundred forty-four thousand, fifty-seven".