15497655203 has 2 divisors, whose sum is σ = 15497655204. Its totient is φ = 15497655202.

The previous prime is 15497655167. The next prime is 15497655221. The reversal of 15497655203 is 30255679451.

It is a strong prime.

It is an emirp because it is prime and its reverse (30255679451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15497655203 - 2⁸ = 15497654947 is a prime.

It is not a weakly prime, because it can be changed into another prime (15497625203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7748827601 + 7748827602.

It is an arithmetic number, because the mean of its divisors is an integer number (7748827602).

Almost surely, 2^15497655203 is an apocalyptic number.

15497655203 is a deficient number, since it is larger than the sum of its proper divisors (1).

15497655203 is an equidigital number, since it uses as much as digits as its factorization.

15497655203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 15497655203 in words is "fifteen billion, four hundred ninety-seven million, six hundred fifty-five thousand, two hundred three".