2556246650 has 24 divisors (see below), whose sum is σ = 5034303900. Its totient is φ = 962351360.

The previous prime is 2556246631. The next prime is 2556246653. The reversal of 2556246650 is 566426552.

It can be written as a sum of positive squares in 6 ways, for example, as 1519986169 + 1036260481 = 38987^2 + 32191^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2556246598 and 2556246607.

It is not an unprimeable number, because it can be changed into a prime (2556246653) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1502825 + ... + 1504524.

Almost surely, 2^2556246650 is an apocalyptic number.

2556246650 is a deficient number, since it is larger than the sum of its proper divisors (2478057250).

2556246650 is a wasteful number, since it uses less digits than its factorization.

2556246650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007378 (or 3007373 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The square root of 2556246650 is about 50559.3379110130. The cubic root of 2556246650 is about 1367.3118742754.

The spelling of 2556246650 in words is "two billion, five hundred fifty-six million, two hundred forty-six thousand, six hundred fifty".