2566075738 has 4 divisors (see below), whose sum is σ = 3849113610. Its totient is φ = 1283037868.

The previous prime is 2566075717. The next prime is 2566075739. The reversal of 2566075738 is 8375706652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2376270009 + 189805729 = 48747^2 + 13777^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2566075691 and 2566075700.

It is not an unprimeable number, because it can be changed into a prime (2566075739) 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, 641518933 + ... + 641518936.

Almost surely, 2^2566075738 is an apocalyptic number.

2566075738 is a deficient number, since it is larger than the sum of its proper divisors (1283037872).

2566075738 is a wasteful number, since it uses less digits than its factorization.

2566075738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283037871.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The square root of 2566075738 is about 50656.4481384157. The cubic root of 2566075738 is about 1369.0621279152.

The spelling of 2566075738 in words is "two billion, five hundred sixty-six million, seventy-five thousand, seven hundred thirty-eight".