2530005502778 has 12 divisors (see below), whose sum is σ = 4109387636718. Its totient is φ = 1167694847280.

The previous prime is 2530005502729. The next prime is 2530005502781. The reversal of 2530005502778 is 8772055000352.

It can be written as a sum of positive squares in 3 ways, for example, as 2085387263569 + 444618239209 = 1444087^2 + 666797^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3742611353 + ... + 3742612028.

Almost surely, 2^{2530005502778} is an apocalyptic number.

2530005502778 is a deficient number, since it is larger than the sum of its proper divisors (1579382133940).

2530005502778 is a wasteful number, since it uses less digits than its factorization.

2530005502778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7485223409 (or 7485223396 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 2530005502778 in words is "two trillion, five hundred thirty billion, five million, five hundred two thousand, seven hundred seventy-eight".