52122613 has 2 divisors, whose sum is σ = 52122614. Its totient is φ = 52122612.

The previous prime is 52122559. The next prime is 52122619. The reversal of 52122613 is 31622125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28483569 + 23639044 = 5337^2 + 4862^2 .

It is a cyclic number.

It is not a de Polignac number, because 52122613 - 2⁹ = 52122101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52122619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26061306 + 26061307.

It is an arithmetic number, because the mean of its divisors is an integer number (26061307).

Almost surely, 2^52122613 is an apocalyptic number.

It is an amenable number.

52122613 is a deficient number, since it is larger than the sum of its proper divisors (1).

52122613 is an equidigital number, since it uses as much as digits as its factorization.

52122613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 52122613 is about 7219.5992271040. The cubic root of 52122613 is about 373.5442536006.

Adding to 52122613 its reverse (31622125), we get a palindrome (83744738).

The spelling of 52122613 in words is "fifty-two million, one hundred twenty-two thousand, six hundred thirteen".