5251121737 has 2 divisors, whose sum is σ = 5251121738. Its totient is φ = 5251121736.

The previous prime is 5251121723. The next prime is 5251121749. The reversal of 5251121737 is 7371211525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5205478201 + 45643536 = 72149^2 + 6756^2 .

It is a cyclic number.

It is not a de Polignac number, because 5251121737 - 2⁷ = 5251121609 is a prime.

It is not a weakly prime, because it can be changed into another prime (5251121537) 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 as a sum of consecutive naturals, namely, 2625560868 + 2625560869.

It is an arithmetic number, because the mean of its divisors is an integer number (2625560869).

Almost surely, 2^5251121737 is an apocalyptic number.

It is an amenable number.

5251121737 is a deficient number, since it is larger than the sum of its proper divisors (1).

5251121737 is an equidigital number, since it uses as much as digits as its factorization.

5251121737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14700, while the sum is 34.

The square root of 5251121737 is about 72464.6240382161. The cubic root of 5251121737 is about 1738.1370973647.

The spelling of 5251121737 in words is "five billion, two hundred fifty-one million, one hundred twenty-one thousand, seven hundred thirty-seven".