52406729 has 2 divisors, whose sum is σ = 52406730. Its totient is φ = 52406728.

The previous prime is 52406687. The next prime is 52406737. The reversal of 52406729 is 92760425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52345225 + 61504 = 7235^2 + 248^2 .

It is a cyclic number.

It is not a de Polignac number, because 52406729 - 2¹⁶ = 52341193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_3136697 and since 52406729 and 3136697 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (52406759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26203364 + 26203365.

It is an arithmetic number, because the mean of its divisors is an integer number (26203365).

Almost surely, 2^52406729 is an apocalyptic number.

It is an amenable number.

52406729 is a deficient number, since it is larger than the sum of its proper divisors (1).

52406729 is an equidigital number, since it uses as much as digits as its factorization.

52406729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 52406729 is about 7239.2492014020. The cubic root of 52406729 is about 374.2217435922.

It can be divided in two parts, 52406 and 729, that added together give a palindrome (53135).

The spelling of 52406729 in words is "fifty-two million, four hundred six thousand, seven hundred twenty-nine".