15391613053 has 2 divisors, whose sum is σ = 15391613054. Its totient is φ = 15391613052.

The previous prime is 15391612991. The next prime is 15391613089. The reversal of 15391613053 is 35031619351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15309855289 + 81757764 = 123733^2 + 9042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15391613053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15391613353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7695806526 + 7695806527.

It is an arithmetic number, because the mean of its divisors is an integer number (7695806527).

Almost surely, 2^15391613053 is an apocalyptic number.

It is an amenable number.

15391613053 is a deficient number, since it is larger than the sum of its proper divisors (1).

15391613053 is an equidigital number, since it uses as much as digits as its factorization.

15391613053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36450, while the sum is 37.

The spelling of 15391613053 in words is "fifteen billion, three hundred ninety-one million, six hundred thirteen thousand, fifty-three".