2780255250025 has 24 divisors (see below), whose sum is σ = 3784000335264. Its totient is φ = 2009598854400.

The previous prime is 2780255250011. The next prime is 2780255250107. The reversal of 2780255250025 is 5200525520872.

It is a de Polignac number, because none of the positive numbers 2^k-2780255250025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30967504 + ... + 31057153.

It is an arithmetic number, because the mean of its divisors is an integer number (157666680636).

Almost surely, 2^{2780255250025} is an apocalyptic number.

2780255250025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2780255250025 is a deficient number, since it is larger than the sum of its proper divisors (1003745085239).

2780255250025 is a wasteful number, since it uses less digits than its factorization.

2780255250025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62024841 (or 62024836 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 43.

The spelling of 2780255250025 in words is "two trillion, seven hundred eighty billion, two hundred fifty-five million, two hundred fifty thousand, twenty-five".