52342729 has 2 divisors, whose sum is σ = 52342730. Its totient is φ = 52342728.

The previous prime is 52342727. The next prime is 52342811. The reversal of 52342729 is 92724325.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39187600 + 13155129 = 6260^2 + 3627^2 .

It is a cyclic number.

It is not a de Polignac number, because 52342729 - 2¹ = 52342727 is a prime.

It is a super-2 number, since 2×52342729² = 5479522558334882, which contains 22 as substring.

Together with 52342727, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 52342694 and 52342703.

It is not a weakly prime, because it can be changed into another prime (52342727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26171364 + 26171365.

It is an arithmetic number, because the mean of its divisors is an integer number (26171365).

Almost surely, 2^52342729 is an apocalyptic number.

It is an amenable number.

52342729 is a deficient number, since it is larger than the sum of its proper divisors (1).

52342729 is an equidigital number, since it uses as much as digits as its factorization.

52342729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 52342729 is about 7234.8275031268. The cubic root of 52342729 is about 374.0693461925.

The spelling of 52342729 in words is "fifty-two million, three hundred forty-two thousand, seven hundred twenty-nine".