2539731629 has 2 divisors, whose sum is σ = 2539731630. Its totient is φ = 2539731628.

The previous prime is 2539731611. The next prime is 2539731631. The reversal of 2539731629 is 9261379352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2390232100 + 149499529 = 48890^2 + 12227^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2539731629 is a prime.

Together with 2539731631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2539731329) 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, 1269865814 + 1269865815.

It is an arithmetic number, because the mean of its divisors is an integer number (1269865815).

Almost surely, 2^2539731629 is an apocalyptic number.

It is an amenable number.

2539731629 is a deficient number, since it is larger than the sum of its proper divisors (1).

2539731629 is an equidigital number, since it uses as much as digits as its factorization.

2539731629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 47.

The square root of 2539731629 is about 50395.7501085161. The cubic root of 2539731629 is about 1364.3609345524.

The spelling of 2539731629 in words is "two billion, five hundred thirty-nine million, seven hundred thirty-one thousand, six hundred twenty-nine".