2549208863 has 4 divisors (see below), whose sum is σ = 2551711560. Its totient is φ = 2546706168.

The previous prime is 2549208839. The next prime is 2549208881. The reversal of 2549208863 is 3688029452.

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

It is a cyclic number.

It is not a de Polignac number, because 2549208863 - 2⁶ = 2549208799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2549207863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1249820 + ... + 1251857.

It is an arithmetic number, because the mean of its divisors is an integer number (637927890).

Almost surely, 2^2549208863 is an apocalyptic number.

2549208863 is a deficient number, since it is larger than the sum of its proper divisors (2502697).

2549208863 is a wasteful number, since it uses less digits than its factorization.

2549208863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502696.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 2549208863 is about 50489.6906605695. The cubic root of 2549208863 is about 1366.0559059613.

The spelling of 2549208863 in words is "two billion, five hundred forty-nine million, two hundred eight thousand, eight hundred sixty-three".