52503709 has 2 divisors, whose sum is σ = 52503710. Its totient is φ = 52503708.

The previous prime is 52503697. The next prime is 52503713. The reversal of 52503709 is 90730525.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50552100 + 1951609 = 7110^2 + 1397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52503709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52503109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26251854 + 26251855.

It is an arithmetic number, because the mean of its divisors is an integer number (26251855).

Almost surely, 2^52503709 is an apocalyptic number.

It is an amenable number.

52503709 is a deficient number, since it is larger than the sum of its proper divisors (1).

52503709 is an equidigital number, since it uses as much as digits as its factorization.

52503709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 52503709 is about 7245.9443138904. The cubic root of 52503709 is about 374.4524370033.

The spelling of 52503709 in words is "fifty-two million, five hundred three thousand, seven hundred nine".