15450530203 has 2 divisors, whose sum is σ = 15450530204. Its totient is φ = 15450530202.

The previous prime is 15450530197. The next prime is 15450530213. The reversal of 15450530203 is 30203505451.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15450530203 is a prime.

It is not a weakly prime, because it can be changed into another prime (15450530213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7725265101 + 7725265102.

It is an arithmetic number, because the mean of its divisors is an integer number (7725265102).

Almost surely, 2^15450530203 is an apocalyptic number.

15450530203 is a deficient number, since it is larger than the sum of its proper divisors (1).

15450530203 is an equidigital number, since it uses as much as digits as its factorization.

15450530203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 15450530203 in words is "fifteen billion, four hundred fifty million, five hundred thirty thousand, two hundred three".