2505552552778 has 16 divisors (see below), whose sum is σ = 4100077362240. Its totient is φ = 1138864669600.

The previous prime is 2505552552761. The next prime is 2505552552787. The reversal of 2505552552778 is 8772552555052.

2505552552778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4083 + ... + 2238553.

It is an arithmetic number, because the mean of its divisors is an integer number (256254835140).

Almost surely, 2^{2505552552778} is an apocalyptic number.

2505552552778 is a deficient number, since it is larger than the sum of its proper divisors (1594524809462).

2505552552778 is a wasteful number, since it uses less digits than its factorization.

2505552552778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285453.

The product of its (nonzero) digits is 49000000, while the sum is 58.

The spelling of 2505552552778 in words is "two trillion, five hundred five billion, five hundred fifty-two million, five hundred fifty-two thousand, seven hundred seventy-eight".