2555791709 has 4 divisors (see below), whose sum is σ = 2610170304. Its totient is φ = 2501413116.

The previous prime is 2555791699. The next prime is 2555791741. The reversal of 2555791709 is 9071975552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2555791709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555791759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27189227 + ... + 27189320.

It is an arithmetic number, because the mean of its divisors is an integer number (652542576).

Almost surely, 2^2555791709 is an apocalyptic number.

It is an amenable number.

2555791709 is a deficient number, since it is larger than the sum of its proper divisors (54378595).

2555791709 is an equidigital number, since it uses as much as digits as its factorization.

2555791709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54378594.

The product of its (nonzero) digits is 992250, while the sum is 50.

The square root of 2555791709 is about 50554.8386309362. The cubic root of 2555791709 is about 1367.2307549336.

The spelling of 2555791709 in words is "two billion, five hundred fifty-five million, seven hundred ninety-one thousand, seven hundred nine".