6543212057 has 2 divisors, whose sum is σ = 6543212058. Its totient is φ = 6543212056.

The previous prime is 6543212023. The next prime is 6543212101. The reversal of 6543212057 is 7502123456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5587413001 + 955799056 = 74749^2 + 30916^2 .

It is a cyclic number.

It is not a de Polignac number, because 6543212057 - 2¹⁶ = 6543146521 is a prime.

It is not a weakly prime, because it can be changed into another prime (6543212657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271606028 + 3271606029.

It is an arithmetic number, because the mean of its divisors is an integer number (3271606029).

Almost surely, 2^6543212057 is an apocalyptic number.

It is an amenable number.

6543212057 is a deficient number, since it is larger than the sum of its proper divisors (1).

6543212057 is an equidigital number, since it uses as much as digits as its factorization.

6543212057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 6543212057 is about 80890.1233587884. The cubic root of 6543212057 is about 1870.3820753608.

The spelling of 6543212057 in words is "six billion, five hundred forty-three million, two hundred twelve thousand, fifty-seven".