5261242039 has 2 divisors, whose sum is σ = 5261242040. Its totient is φ = 5261242038.

The previous prime is 5261242037. The next prime is 5261242171. The reversal of 5261242039 is 9302421625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5261242039 - 2¹ = 5261242037 is a prime.

Together with 5261242037, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 5261241995 and 5261242013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5261242037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2630621019 + 2630621020.

It is an arithmetic number, because the mean of its divisors is an integer number (2630621020).

Almost surely, 2^5261242039 is an apocalyptic number.

5261242039 is a deficient number, since it is larger than the sum of its proper divisors (1).

5261242039 is an equidigital number, since it uses as much as digits as its factorization.

5261242039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 5261242039 is about 72534.4196847262. The cubic root of 5261242039 is about 1739.2529975989.

The spelling of 5261242039 in words is "five billion, two hundred sixty-one million, two hundred forty-two thousand, thirty-nine".