2558496242 has 16 divisors (see below), whose sum is σ = 3914735832. Its totient is φ = 1253640960.

The previous prime is 2558496233. The next prime is 2558496263. The reversal of 2558496242 is 2426948552.

It can be written as a sum of positive squares in 4 ways, for example, as 2267759641 + 290736601 = 47621^2 + 17051^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 79688 + ... + 107084.

Almost surely, 2^2558496242 is an apocalyptic number.

2558496242 is a deficient number, since it is larger than the sum of its proper divisors (1356239590).

2558496242 is a wasteful number, since it uses less digits than its factorization.

2558496242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28333.

The product of its digits is 1382400, while the sum is 47.

The square root of 2558496242 is about 50581.5800662652. The cubic root of 2558496242 is about 1367.7128517521.

The spelling of 2558496242 in words is "two billion, five hundred fifty-eight million, four hundred ninety-six thousand, two hundred forty-two".