2558722948 has 6 divisors (see below), whose sum is σ = 4477765166. Its totient is φ = 1279361472.

The previous prime is 2558722937. The next prime is 2558722949. The reversal of 2558722948 is 8492278552.

It can be written as a sum of positive squares in only one way, i.e., 1895557444 + 663165504 = 43538^2 + 25752^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2558722895 and 2558722904.

It is not an unprimeable number, because it can be changed into a prime (2558722949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319840365 + ... + 319840372.

Almost surely, 2^2558722948 is an apocalyptic number.

It is an amenable number.

2558722948 is a deficient number, since it is larger than the sum of its proper divisors (1919042218).

2558722948 is a wasteful number, since it uses less digits than its factorization.

2558722948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639680741 (or 639680739 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 52.

The square root of 2558722948 is about 50583.8210102796. The cubic root of 2558722948 is about 1367.7532478185.

The spelling of 2558722948 in words is "two billion, five hundred fifty-eight million, seven hundred twenty-two thousand, nine hundred forty-eight".