2558499947 has 2 divisors, whose sum is σ = 2558499948. Its totient is φ = 2558499946.

The previous prime is 2558499907. The next prime is 2558499959. The reversal of 2558499947 is 7499948552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2558499947 - 2⁶ = 2558499883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2558499947.

It is not a weakly prime, because it can be changed into another prime (2558499907) 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, 1279249973 + 1279249974.

It is an arithmetic number, because the mean of its divisors is an integer number (1279249974).

Almost surely, 2^2558499947 is an apocalyptic number.

2558499947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2558499947 is an equidigital number, since it uses as much as digits as its factorization.

2558499947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32659200, while the sum is 62.

The square root of 2558499947 is about 50581.6166902562. The cubic root of 2558499947 is about 1367.7135119542.

The spelling of 2558499947 in words is "two billion, five hundred fifty-eight million, four hundred ninety-nine thousand, nine hundred forty-seven".