2551051777 has 4 divisors (see below), whose sum is σ = 2685317680. Its totient is φ = 2416785876.

The previous prime is 2551051747. The next prime is 2551051819. The reversal of 2551051777 is 7771501552.

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-2551051777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2551051717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67132923 + ... + 67132960.

It is an arithmetic number, because the mean of its divisors is an integer number (671329420).

Almost surely, 2^2551051777 is an apocalyptic number.

It is an amenable number.

2551051777 is a deficient number, since it is larger than the sum of its proper divisors (134265903).

2551051777 is a wasteful number, since it uses less digits than its factorization.

2551051777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134265902.

The product of its (nonzero) digits is 85750, while the sum is 40.

The square root of 2551051777 is about 50507.9377622963. The cubic root of 2551051777 is about 1366.3850168428.

The spelling of 2551051777 in words is "two billion, five hundred fifty-one million, fifty-one thousand, seven hundred seventy-seven".