13530220547 has 2 divisors, whose sum is σ = 13530220548. Its totient is φ = 13530220546.

The previous prime is 13530220493. The next prime is 13530220573. The reversal of 13530220547 is 74502203531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13530220547 is a prime.

It is not a weakly prime, because it can be changed into another prime (13530220447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765110273 + 6765110274.

It is an arithmetic number, because the mean of its divisors is an integer number (6765110274).

Almost surely, 2^13530220547 is an apocalyptic number.

13530220547 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530220547 is an equidigital number, since it uses as much as digits as its factorization.

13530220547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 32.

The spelling of 13530220547 in words is "thirteen billion, five hundred thirty million, two hundred twenty thousand, five hundred forty-seven".