2556366850 has 12 divisors (see below), whose sum is σ = 4754842434. Its totient is φ = 1022546720.

The previous prime is 2556366829. The next prime is 2556366859. The reversal of 2556366850 is 586636552.

It can be written as a sum of positive squares in 3 ways, for example, as 2470785849 + 85581001 = 49707^2 + 9251^2 .

It is a super-2 number, since 2×2556366850² = 13070022943557845000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2556366850.

It is not an unprimeable number, because it can be changed into a prime (2556366859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25563619 + ... + 25563718.

Almost surely, 2^2556366850 is an apocalyptic number.

2556366850 is a deficient number, since it is larger than the sum of its proper divisors (2198475584).

2556366850 is a wasteful number, since it uses less digits than its factorization.

2556366850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51127349 (or 51127344 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 46.

The square root of 2556366850 is about 50560.5265993146. The cubic root of 2556366850 is about 1367.3333052161. Note that the first 4 decimals are identical.

The spelling of 2556366850 in words is "two billion, five hundred fifty-six million, three hundred sixty-six thousand, eight hundred fifty".