2556051320550 has 192 divisors, whose sum is σ = 7967854024704. Its totient is φ = 527824166400.

The previous prime is 2556051320521. The next prime is 2556051320573. The reversal of 2556051320550 is 550231506552.

2556051320550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 2556051320499 and 2556051320508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1350541 + ... + 2633640.

It is an arithmetic number, because the mean of its divisors is an integer number (41499239712).

Almost surely, 2^{2556051320550} is an apocalyptic number.

2556051320550 is an abundant number, since it is smaller than the sum of its proper divisors (5411802704154).

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

2556051320550 is a wasteful number, since it uses less digits than its factorization.

2556051320550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984263 (or 3984258 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 39.

The spelling of 2556051320550 in words is "two trillion, five hundred fifty-six billion, fifty-one million, three hundred twenty thousand, five hundred fifty".