15513382057 has 2 divisors, whose sum is σ = 15513382058. Its totient is φ = 15513382056.

The previous prime is 15513382043. The next prime is 15513382097. The reversal of 15513382057 is 75028331551.

It is an a-pointer prime, because the next prime (15513382097) can be obtained adding 15513382057 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9236939881 + 6276442176 = 96109^2 + 79224^2 .

It is an emirp because it is prime and its reverse (75028331551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15513382057 - 2¹⁹ = 15512857769 is a prime.

It is not a weakly prime, because it can be changed into another prime (15513382037) 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, 7756691028 + 7756691029.

It is an arithmetic number, because the mean of its divisors is an integer number (7756691029).

Almost surely, 2^15513382057 is an apocalyptic number.

It is an amenable number.

15513382057 is a deficient number, since it is larger than the sum of its proper divisors (1).

15513382057 is an equidigital number, since it uses as much as digits as its factorization.

15513382057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 15513382057 in words is "fifteen billion, five hundred thirteen million, three hundred eighty-two thousand, fifty-seven".