2780050025550 has 48 divisors (see below), whose sum is σ = 7879456075392. Its totient is φ = 635440005600.

The previous prime is 2780050025539. The next prime is 2780050025579. The reversal of 2780050025550 is 555200500872.

It is a junction number, because it is equal to n+sod(n) for n = 2780050025499 and 2780050025508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1323832296 + ... + 1323834395.

It is an arithmetic number, because the mean of its divisors is an integer number (164155334904).

Almost surely, 2^{2780050025550} is an apocalyptic number.

2780050025550 is an abundant number, since it is smaller than the sum of its proper divisors (5099406049842).

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

2780050025550 is a wasteful number, since it uses less digits than its factorization.

2780050025550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647666713 (or 2647666708 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 39.

The spelling of 2780050025550 in words is "two trillion, seven hundred eighty billion, fifty million, twenty-five thousand, five hundred fifty".