57000006205 has 8 divisors (see below), whose sum is σ = 68480200152. Its totient is φ = 45546543168.

The previous prime is 57000006169. The next prime is 57000006209. The reversal of 57000006205 is 50260000075.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4717354489 + 52282651716 = 68683^2 + 228654^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57000006205 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 57000006205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57000006209) 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 7 ways as a sum of consecutive naturals, for example, 6678034 + ... + 6686563.

It is an arithmetic number, because the mean of its divisors is an integer number (8560025019).

Almost surely, 2^57000006205 is an apocalyptic number.

It is an amenable number.

57000006205 is a deficient number, since it is larger than the sum of its proper divisors (11480193947).

57000006205 is a wasteful number, since it uses less digits than its factorization.

57000006205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13365455.

The product of its (nonzero) digits is 2100, while the sum is 25.

The spelling of 57000006205 in words is "fifty-seven billion, six thousand, two hundred five".