2558363197 has 4 divisors (see below), whose sum is σ = 2755160380. Its totient is φ = 2361566016.

The previous prime is 2558363191. The next prime is 2558363273. The reversal of 2558363197 is 7913638552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 875804836 + 1682558361 = 29594^2 + 41019^2 .

It is a cyclic number.

It is not a de Polignac number, because 2558363197 - 2³ = 2558363189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2558363197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2558363191) 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 in 3 ways as a sum of consecutive naturals, for example, 98398572 + ... + 98398597.

It is an arithmetic number, because the mean of its divisors is an integer number (688790095).

Almost surely, 2^2558363197 is an apocalyptic number.

It is an amenable number.

2558363197 is a deficient number, since it is larger than the sum of its proper divisors (196797183).

2558363197 is a wasteful number, since it uses less digits than its factorization.

2558363197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196797182.

The product of its digits is 1360800, while the sum is 49.

The square root of 2558363197 is about 50580.2648964989. The cubic root of 2558363197 is about 1367.6891437490.

The spelling of 2558363197 in words is "two billion, five hundred fifty-eight million, three hundred sixty-three thousand, one hundred ninety-seven".