2556554917489 has 16 divisors (see below), whose sum is σ = 2623205785024. Its totient is φ = 2490239505600.

The previous prime is 2556554917471. The next prime is 2556554917529. The reversal of 2556554917489 is 9847194556552.

2556554917489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2556554917489 - 2¹³ = 2556554909297 is a prime.

It is a super-2 number, since 2×2556554917489² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2556554917589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26075419 + ... + 26173279.

It is an arithmetic number, because the mean of its divisors is an integer number (163950361564).

Almost surely, 2^{2556554917489} is an apocalyptic number.

It is an amenable number.

2556554917489 is a deficient number, since it is larger than the sum of its proper divisors (66650867535).

2556554917489 is a wasteful number, since it uses less digits than its factorization.

2556554917489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99568.

The product of its digits is 544320000, while the sum is 70.

The spelling of 2556554917489 in words is "two trillion, five hundred fifty-six billion, five hundred fifty-four million, nine hundred seventeen thousand, four hundred eighty-nine".