2558191047 has 4 divisors (see below), whose sum is σ = 3410921400. Its totient is φ = 1705460696.

The previous prime is 2558191043. The next prime is 2558191061. The reversal of 2558191047 is 7401918552.

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

It is a cyclic number.

It is not a de Polignac number, because 2558191047 - 2² = 2558191043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2558191043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426365172 + ... + 426365177.

It is an arithmetic number, because the mean of its divisors is an integer number (852730350).

Almost surely, 2^2558191047 is an apocalyptic number.

2558191047 is a deficient number, since it is larger than the sum of its proper divisors (852730353).

2558191047 is an equidigital number, since it uses as much as digits as its factorization.

2558191047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852730352.

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 2558191047 is about 50578.5631171942. The cubic root of 2558191047 is about 1367.6584661960.

The spelling of 2558191047 in words is "two billion, five hundred fifty-eight million, one hundred ninety-one thousand, forty-seven".