2555778002508 has 18 divisors (see below), whose sum is σ = 6460438839764. Its totient is φ = 851926000824.

The previous prime is 2555778002473. The next prime is 2555778002527. The reversal of 2555778002508 is 8052008775552.

2555778002508 is a `hidden beast` number, since 2 + 5 + 5 + 57 + 7 + 80 + 0 + 2 + 508 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35496916666 + ... + 35496916737.

Almost surely, 2^{2555778002508} is an apocalyptic number.

It is an amenable number.

2555778002508 is an abundant number, since it is smaller than the sum of its proper divisors (3904660837256).

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

2555778002508 is a wasteful number, since it uses less digits than its factorization.

2555778002508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70993833413 (or 70993833408 counting only the distinct ones).

The product of its (nonzero) digits is 7840000, while the sum is 54.

The spelling of 2555778002508 in words is "two trillion, five hundred fifty-five billion, seven hundred seventy-eight million, two thousand, five hundred eight".