2558252456 has 8 divisors (see below), whose sum is σ = 4796723370. Its totient is φ = 1279126224.

The previous prime is 2558252453. The next prime is 2558252471. The reversal of 2558252456 is 6542528552.

It can be written as a sum of positive squares in only one way, i.e., 1975802500 + 582449956 = 44450^2 + 24134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2558252453) 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 as a sum of consecutive naturals, namely, 159890771 + ... + 159890786.

Almost surely, 2^2558252456 is an apocalyptic number.

It is an amenable number.

2558252456 is a deficient number, since it is larger than the sum of its proper divisors (2238470914).

2558252456 is a wasteful number, since it uses less digits than its factorization.

2558252456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319781563 (or 319781559 counting only the distinct ones).

The product of its digits is 960000, while the sum is 44.

The square root of 2558252456 is about 50579.1701790371. The cubic root of 2558252456 is about 1367.6694095886.

The spelling of 2558252456 in words is "two billion, five hundred fifty-eight million, two hundred fifty-two thousand, four hundred fifty-six".