15503621041 has 2 divisors, whose sum is σ = 15503621042. Its totient is φ = 15503621040.

The previous prime is 15503621011. The next prime is 15503621069. The reversal of 15503621041 is 14012630551.

It is an a-pointer prime, because the next prime (15503621069) can be obtained adding 15503621041 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9980010000 + 5523611041 = 99900^2 + 74321^2 .

It is a cyclic number.

It is not a de Polignac number, because 15503621041 - 2⁹ = 15503620529 is a prime.

It is not a weakly prime, because it can be changed into another prime (15503621011) 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, 7751810520 + 7751810521.

It is an arithmetic number, because the mean of its divisors is an integer number (7751810521).

Almost surely, 2^15503621041 is an apocalyptic number.

It is an amenable number.

15503621041 is a deficient number, since it is larger than the sum of its proper divisors (1).

15503621041 is an equidigital number, since it uses as much as digits as its factorization.

15503621041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 15503621041 in words is "fifteen billion, five hundred three million, six hundred twenty-one thousand, forty-one".