2006258557 has 2 divisors, whose sum is σ = 2006258558. Its totient is φ = 2006258556.

The previous prime is 2006258549. The next prime is 2006258563. The reversal of 2006258557 is 7558526002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1396217956 + 610040601 = 37366^2 + 24699^2 .

It is a cyclic number.

It is not a de Polignac number, because 2006258557 - 2³ = 2006258549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2006258567) 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 as a sum of consecutive naturals, namely, 1003129278 + 1003129279.

It is an arithmetic number, because the mean of its divisors is an integer number (1003129279).

Almost surely, 2^2006258557 is an apocalyptic number.

It is an amenable number.

2006258557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2006258557 is an equidigital number, since it uses as much as digits as its factorization.

2006258557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 2006258557 is about 44791.2776888537. The cubic root of 2006258557 is about 1261.2338960430.

The spelling of 2006258557 in words is "two billion, six million, two hundred fifty-eight thousand, five hundred fifty-seven".