2557106543 has 2 divisors, whose sum is σ = 2557106544. Its totient is φ = 2557106542.

The previous prime is 2557106477. The next prime is 2557106569. The reversal of 2557106543 is 3456017552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2557106543 - 2¹⁸ = 2556844399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2557106497 and 2557106506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551106543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278553271 + 1278553272.

It is an arithmetic number, because the mean of its divisors is an integer number (1278553272).

Almost surely, 2^2557106543 is an apocalyptic number.

2557106543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557106543 is an equidigital number, since it uses as much as digits as its factorization.

2557106543 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 38.

The square root of 2557106543 is about 50567.8409960323. The cubic root of 2557106543 is about 1367.4651732667.

The spelling of 2557106543 in words is "two billion, five hundred fifty-seven million, one hundred six thousand, five hundred forty-three".