5251251113 has 2 divisors, whose sum is σ = 5251251114. Its totient is φ = 5251251112.

The previous prime is 5251251043. The next prime is 5251251121. The reversal of 5251251113 is 3111521525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4709665129 + 541585984 = 68627^2 + 23272^2 .

It is a cyclic number.

It is not a de Polignac number, because 5251251113 - 2⁸ = 5251250857 is a prime.

It is not a weakly prime, because it can be changed into another prime (5251251143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625625556 + 2625625557.

It is an arithmetic number, because the mean of its divisors is an integer number (2625625557).

Almost surely, 2^5251251113 is an apocalyptic number.

It is an amenable number.

5251251113 is a deficient number, since it is larger than the sum of its proper divisors (1).

5251251113 is an equidigital number, since it uses as much as digits as its factorization.

5251251113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1500, while the sum is 26.

The square root of 5251251113 is about 72465.5167165735. The cubic root of 5251251113 is about 1738.1513718626.

Adding to 5251251113 its reverse (3111521525), we get a palindrome (8362772638).

The spelling of 5251251113 in words is "five billion, two hundred fifty-one million, two hundred fifty-one thousand, one hundred thirteen".