2558242756 has 12 divisors (see below), whose sum is σ = 4740273468. Its totient is φ = 1203878912.

The previous prime is 2558242747. The next prime is 2558242763. The reversal of 2558242756 is 6572428552.

It can be written as a sum of positive squares in 2 ways, for example, as 996412356 + 1561830400 = 31566^2 + 39520^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18810541 + ... + 18810676.

It is an arithmetic number, because the mean of its divisors is an integer number (395022789).

Almost surely, 2^2558242756 is an apocalyptic number.

It is an amenable number.

2558242756 is a deficient number, since it is larger than the sum of its proper divisors (2182030712).

2558242756 is a wasteful number, since it uses less digits than its factorization.

2558242756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37621238 (or 37621236 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 46.

The square root of 2558242756 is about 50579.0742896704. The cubic root of 2558242756 is about 1367.6676810115.

The spelling of 2558242756 in words is "two billion, five hundred fifty-eight million, two hundred forty-two thousand, seven hundred fifty-six".