2567781258 has 32 divisors (see below), whose sum is σ = 6178122240. Its totient is φ = 695038320.

The previous prime is 2567781257. The next prime is 2567781283. The reversal of 2567781258 is 8521877652.

It is a self number, because there is not a number n which added to its sum of digits gives 2567781258.

It is not an unprimeable number, because it can be changed into a prime (2567781253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1608088 + ... + 1609683.

It is an arithmetic number, because the mean of its divisors is an integer number (193066320).

Almost surely, 2^2567781258 is an apocalyptic number.

2567781258 is an abundant number, since it is smaller than the sum of its proper divisors (3610340982).

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

2567781258 is a wasteful number, since it uses less digits than its factorization.

2567781258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217802.

The product of its digits is 1881600, while the sum is 51.

The square root of 2567781258 is about 50673.2795267881. The cubic root of 2567781258 is about 1369.3653725016.

The spelling of 2567781258 in words is "two billion, five hundred sixty-seven million, seven hundred eighty-one thousand, two hundred fifty-eight".