15502042513 has 2 divisors, whose sum is σ = 15502042514. Its totient is φ = 15502042512.

The previous prime is 15502042463. The next prime is 15502042519. The reversal of 15502042513 is 31524020551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8059011984 + 7443030529 = 89772^2 + 86273^2 .

It is a cyclic number.

It is not a de Polignac number, because 15502042513 - 2¹³ = 15502034321 is a prime.

It is not a weakly prime, because it can be changed into another prime (15502042519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7751021256 + 7751021257.

It is an arithmetic number, because the mean of its divisors is an integer number (7751021257).

Almost surely, 2^15502042513 is an apocalyptic number.

It is an amenable number.

15502042513 is a deficient number, since it is larger than the sum of its proper divisors (1).

15502042513 is an equidigital number, since it uses as much as digits as its factorization.

15502042513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 15502042513 in words is "fifteen billion, five hundred two million, forty-two thousand, five hundred thirteen".