6205430557 has 2 divisors, whose sum is σ = 6205430558. Its totient is φ = 6205430556.

The previous prime is 6205430537. The next prime is 6205430587. The reversal of 6205430557 is 7550345026.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5532235641 + 673194916 = 74379^2 + 25946^2 .

It is a cyclic number.

It is not a de Polignac number, because 6205430557 - 2³¹ = 4057946909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6205430507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3102715278 + 3102715279.

It is an arithmetic number, because the mean of its divisors is an integer number (3102715279).

Almost surely, 2^6205430557 is an apocalyptic number.

It is an amenable number.

6205430557 is a deficient number, since it is larger than the sum of its proper divisors (1).

6205430557 is an equidigital number, since it uses as much as digits as its factorization.

6205430557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 6205430557 is about 78774.5552637398. Note that the first 3 decimals coincide. The cubic root of 6205430557 is about 1837.6267604224.

The spelling of 6205430557 in words is "six billion, two hundred five million, four hundred thirty thousand, five hundred fifty-seven".