2566374506 has 4 divisors (see below), whose sum is σ = 3849561762. Its totient is φ = 1283187252.

The previous prime is 2566374497. The next prime is 2566374617. The reversal of 2566374506 is 6054736652.

It is a happy number.

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., 2330475625 + 235898881 = 48275^2 + 15359^2 .

It is an unprimeable number.

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, 641593625 + ... + 641593628.

Almost surely, 2^2566374506 is an apocalyptic number.

2566374506 is a deficient number, since it is larger than the sum of its proper divisors (1283187256).

2566374506 is a wasteful number, since it uses less digits than its factorization.

2566374506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283187255.

The product of its (nonzero) digits is 907200, while the sum is 44.

The square root of 2566374506 is about 50659.3970157561. The cubic root of 2566374506 is about 1369.1152591192.

The spelling of 2566374506 in words is "two billion, five hundred sixty-six million, three hundred seventy-four thousand, five hundred six".