5207242813 has 4 divisors (see below), whose sum is σ = 5386802940. Its totient is φ = 5027682688.

The previous prime is 5207242811. The next prime is 5207242823. The reversal of 5207242813 is 3182427025.

It is a happy number.

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 4444488889 + 762753924 = 66667^2 + 27618^2 .

It is a cyclic number.

It is not a de Polignac number, because 5207242813 - 2¹ = 5207242811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5207242811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89780020 + ... + 89780077.

It is an arithmetic number, because the mean of its divisors is an integer number (1346700735).

Almost surely, 2^5207242813 is an apocalyptic number.

It is an amenable number.

5207242813 is a deficient number, since it is larger than the sum of its proper divisors (179560127).

5207242813 is a wasteful number, since it uses less digits than its factorization.

5207242813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179560126.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 5207242813 is about 72161.2279066813. The cubic root of 5207242813 is about 1733.2821975011.

Adding to 5207242813 its reverse (3182427025), we get a palindrome (8389669838).

The spelling of 5207242813 in words is "five billion, two hundred seven million, two hundred forty-two thousand, eight hundred thirteen".