2551223113 has 4 divisors (see below), whose sum is σ = 2551408020. Its totient is φ = 2551038208.

The previous prime is 2551223107. The next prime is 2551223141. The reversal of 2551223113 is 3113221552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 576576144 + 1974646969 = 24012^2 + 44437^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551223113 - 2⁹ = 2551222601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2551223173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69928 + ... + 99961.

It is an arithmetic number, because the mean of its divisors is an integer number (637852005).

Almost surely, 2^2551223113 is an apocalyptic number.

It is an amenable number.

2551223113 is a deficient number, since it is larger than the sum of its proper divisors (184907).

2551223113 is a wasteful number, since it uses less digits than its factorization.

2551223113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184906.

The product of its digits is 1800, while the sum is 25.

The square root of 2551223113 is about 50509.6338632542. The cubic root of 2551223113 is about 1366.4156062784.

Adding to 2551223113 its reverse (3113221552), we get a palindrome (5664444665).

The spelling of 2551223113 in words is "two billion, five hundred fifty-one million, two hundred twenty-three thousand, one hundred thirteen".