15520942093 has 2 divisors, whose sum is σ = 15520942094. Its totient is φ = 15520942092.

The previous prime is 15520942049. The next prime is 15520942103. The reversal of 15520942093 is 39024902551.

15520942093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12285948964 + 3234993129 = 110842^2 + 56877^2 .

It is a cyclic number.

It is not a de Polignac number, because 15520942093 - 2¹⁷ = 15520811021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15520942043) 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, 7760471046 + 7760471047.

It is an arithmetic number, because the mean of its divisors is an integer number (7760471047).

Almost surely, 2^15520942093 is an apocalyptic number.

It is an amenable number.

15520942093 is a deficient number, since it is larger than the sum of its proper divisors (1).

15520942093 is an equidigital number, since it uses as much as digits as its factorization.

15520942093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 15520942093 in words is "fifteen billion, five hundred twenty million, nine hundred forty-two thousand, ninety-three".