2562745873 has 4 divisors (see below), whose sum is σ = 2562849828. Its totient is φ = 2562641920.

The previous prime is 2562745853. The next prime is 2562745879. The reversal of 2562745873 is 3785472652.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1244184529 + 1318561344 = 35273^2 + 36312^2 .

It is a cyclic number.

It is not a de Polignac number, because 2562745873 - 2⁵ = 2562745841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2562745879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8313 + ... + 72073.

It is an arithmetic number, because the mean of its divisors is an integer number (640712457).

Almost surely, 2^2562745873 is an apocalyptic number.

It is an amenable number.

2562745873 is a deficient number, since it is larger than the sum of its proper divisors (103955).

2562745873 is an equidigital number, since it uses as much as digits as its factorization.

2562745873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103954.

The product of its digits is 2822400, while the sum is 49.

The square root of 2562745873 is about 50623.5703304301. The cubic root of 2562745873 is about 1368.4696843224.

The spelling of 2562745873 in words is "two billion, five hundred sixty-two million, seven hundred forty-five thousand, eight hundred seventy-three".