2550771551 has 4 divisors (see below), whose sum is σ = 2555783400. Its totient is φ = 2545759704.

The previous prime is 2550771529. The next prime is 2550771557. The reversal of 2550771551 is 1551770552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2550771551 - 2²² = 2546577247 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 (2550771557) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2505161 + ... + 2506178.

It is an arithmetic number, because the mean of its divisors is an integer number (638945850).

Almost surely, 2^2550771551 is an apocalyptic number.

2550771551 is a deficient number, since it is larger than the sum of its proper divisors (5011849).

2550771551 is an equidigital number, since it uses as much as digits as its factorization.

2550771551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011848.

The product of its (nonzero) digits is 61250, while the sum is 38.

The square root of 2550771551 is about 50505.1636072986. The cubic root of 2550771551 is about 1366.3349838026.

Subtracting from 2550771551 its reverse (1551770552), we obtain a palindrome (999000999).

The spelling of 2550771551 in words is "two billion, five hundred fifty million, seven hundred seventy-one thousand, five hundred fifty-one".