5665857254257 has 8 divisors (see below), whose sum is σ = 5850000218880. Its totient is φ = 5481800125680.

The previous prime is 5665857254237. The next prime is 5665857254269. The reversal of 5665857254257 is 7524527585665.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5665857254257 - 2³⁹ = 5116101440369 is a prime.

It is a super-2 number, since 2×5665857254257² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5665857254192 and 5665857254201.

It is not an unprimeable number, because it can be changed into a prime (5665857254237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21324838 + ... + 21588895.

It is an arithmetic number, because the mean of its divisors is an integer number (731250027360).

Almost surely, 2^{5665857254257} is an apocalyptic number.

It is an amenable number.

5665857254257 is a deficient number, since it is larger than the sum of its proper divisors (184142964623).

5665857254257 is a wasteful number, since it uses less digits than its factorization.

5665857254257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42918023.

The product of its digits is 705600000, while the sum is 67.

The spelling of 5665857254257 in words is "five trillion, six hundred sixty-five billion, eight hundred fifty-seven million, two hundred fifty-four thousand, two hundred fifty-seven".