2549866880 has 192 divisors, whose sum is σ = 7057033200. Its totient is φ = 877916160.

The previous prime is 2549866853. The next prime is 2549866909. The reversal of 2549866880 is 886689452.

It is a super-2 number, since 2×2549866880² = 13003642211441868800, which contains 22 as substring.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 1470494 + ... + 1472226.

Almost surely, 2^2549866880 is an apocalyptic number.

2549866880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2549866880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3528516600).

2549866880 is an abundant number, since it is smaller than the sum of its proper divisors (4507166320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2549866880 is a wasteful number, since it uses less digits than its factorization.

2549866880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 56.

The square root of 2549866880 is about 50496.2065901984. The cubic root of 2549866880 is about 1366.1734340162.

The spelling of 2549866880 in words is "two billion, five hundred forty-nine million, eight hundred sixty-six thousand, eight hundred eighty".