2506594906 has 4 divisors (see below), whose sum is σ = 3759892362. Its totient is φ = 1253297452.

The previous prime is 2506594897. The next prime is 2506594913. The reversal of 2506594906 is 6094956052.

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., 2110943025 + 395651881 = 45945^2 + 19891^2 .

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, 626648725 + ... + 626648728.

Almost surely, 2^2506594906 is an apocalyptic number.

2506594906 is a deficient number, since it is larger than the sum of its proper divisors (1253297456).

2506594906 is a wasteful number, since it uses less digits than its factorization.

2506594906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253297455.

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 2506594906 is about 50065.9056244866. The cubic root of 2506594906 is about 1358.4011823670.

The spelling of 2506594906 in words is "two billion, five hundred six million, five hundred ninety-four thousand, nine hundred six".