52407709 has 2 divisors, whose sum is σ = 52407710. Its totient is φ = 52407708.

The previous prime is 52407703. The next prime is 52407743. The reversal of 52407709 is 90770425.

It is an a-pointer prime, because the next prime (52407743) can be obtained adding 52407709 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44595684 + 7812025 = 6678^2 + 2795^2 .

It is a cyclic number.

It is not a de Polignac number, because 52407709 - 2⁷ = 52407581 is a prime.

It is equal to p_3136759 and since 52407709 and 3136759 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52407703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26203854 + 26203855.

It is an arithmetic number, because the mean of its divisors is an integer number (26203855).

Almost surely, 2^52407709 is an apocalyptic number.

It is an amenable number.

52407709 is a deficient number, since it is larger than the sum of its proper divisors (1).

52407709 is an equidigital number, since it uses as much as digits as its factorization.

52407709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 52407709 is about 7239.3168876628. The cubic root of 52407709 is about 374.2240762126.

The spelling of 52407709 in words is "fifty-two million, four hundred seven thousand, seven hundred nine".