15535234543 has 2 divisors, whose sum is σ = 15535234544. Its totient is φ = 15535234542.

The previous prime is 15535234541. The next prime is 15535234553. The reversal of 15535234543 is 34543253551.

It is a weak prime.

It is an emirp because it is prime and its reverse (34543253551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15535234543 - 2¹ = 15535234541 is a prime.

Together with 15535234541, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 15535234496 and 15535234505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15535234541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7767617271 + 7767617272.

It is an arithmetic number, because the mean of its divisors is an integer number (7767617272).

Almost surely, 2^15535234543 is an apocalyptic number.

15535234543 is a deficient number, since it is larger than the sum of its proper divisors (1).

15535234543 is an equidigital number, since it uses as much as digits as its factorization.

15535234543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540000, while the sum is 40.

The spelling of 15535234543 in words is "fifteen billion, five hundred thirty-five million, two hundred thirty-four thousand, five hundred forty-three".