2558201813 has 2 divisors, whose sum is σ = 2558201814. Its totient is φ = 2558201812.

The previous prime is 2558201797. The next prime is 2558201909. The reversal of 2558201813 is 3181028552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2419951249 + 138250564 = 49193^2 + 11758^2 .

It is a cyclic number.

It is not a de Polignac number, because 2558201813 - 2⁴ = 2558201797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2558206813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1279100906 + 1279100907.

It is an arithmetic number, because the mean of its divisors is an integer number (1279100907).

Almost surely, 2^2558201813 is an apocalyptic number.

It is an amenable number.

2558201813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2558201813 is an equidigital number, since it uses as much as digits as its factorization.

2558201813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 2558201813 is about 50578.6695455703. The cubic root of 2558201813 is about 1367.6603847640.

The spelling of 2558201813 in words is "two billion, five hundred fifty-eight million, two hundred one thousand, eight hundred thirteen".