2505552580778 has 64 divisors (see below), whose sum is σ = 4286959447680. Its totient is φ = 1088737977600.

The previous prime is 2505552580777. The next prime is 2505552580801. The reversal of 2505552580778 is 8770852555052.

It is not an unprimeable number, because it can be changed into a prime (2505552580771) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 140460476 + ... + 140478312.

It is an arithmetic number, because the mean of its divisors is an integer number (66983741370).

Almost surely, 2^{2505552580778} is an apocalyptic number.

2505552580778 is a deficient number, since it is larger than the sum of its proper divisors (1781406866902).

2505552580778 is a wasteful number, since it uses less digits than its factorization.

2505552580778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19623.

The product of its (nonzero) digits is 39200000, while the sum is 59.

The spelling of 2505552580778 in words is "two trillion, five hundred five billion, five hundred fifty-two million, five hundred eighty thousand, seven hundred seventy-eight".