15252009709 has 2 divisors, whose sum is σ = 15252009710. Its totient is φ = 15252009708.

The previous prime is 15252009691. The next prime is 15252009713. The reversal of 15252009709 is 90790025251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12332768809 + 2919240900 = 111053^2 + 54030^2 .

It is a cyclic number.

It is not a de Polignac number, because 15252009709 - 2⁷ = 15252009581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15252007709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7626004854 + 7626004855.

It is an arithmetic number, because the mean of its divisors is an integer number (7626004855).

Almost surely, 2^15252009709 is an apocalyptic number.

It is an amenable number.

15252009709 is a deficient number, since it is larger than the sum of its proper divisors (1).

15252009709 is an equidigital number, since it uses as much as digits as its factorization.

15252009709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 40.

The spelling of 15252009709 in words is "fifteen billion, two hundred fifty-two million, nine thousand, seven hundred nine".