2558782146 has 16 divisors (see below), whose sum is σ = 5132232000. Its totient is φ = 850482768.

The previous prime is 2558782111. The next prime is 2558782147. The reversal of 2558782146 is 6412878552.

It is a junction number, because it is equal to n+sod(n) for n = 2558782095 and 2558782104.

It is not an unprimeable number, because it can be changed into a prime (2558782147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608886 + ... + 613073.

It is an arithmetic number, because the mean of its divisors is an integer number (320764500).

Almost surely, 2^2558782146 is an apocalyptic number.

2558782146 is an abundant number, since it is smaller than the sum of its proper divisors (2573449854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2558782146 is a wasteful number, since it uses less digits than its factorization.

2558782146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222313.

The product of its digits is 1075200, while the sum is 48.

The square root of 2558782146 is about 50584.4061544662. The cubic root of 2558782146 is about 1367.7637957407.

The spelling of 2558782146 in words is "two billion, five hundred fifty-eight million, seven hundred eighty-two thousand, one hundred forty-six".