15342550543 has 12 divisors (see below), whose sum is σ = 16259416888. Its totient is φ = 14468963040.

The previous prime is 15342550537. The next prime is 15342550549. The reversal of 15342550543 is 34505524351.

It is an interprime number because it is at equal distance from previous prime (15342550537) and next prime (15342550549).

It is a de Polignac number, because none of the positive numbers 2^k-15342550543 is a prime.

It is a super-3 number, since 3×15342550543³ (a number of 32 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15342550549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175968 + ... + 248293.

Almost surely, 2^15342550543 is an apocalyptic number.

15342550543 is a deficient number, since it is larger than the sum of its proper divisors (916866345).

15342550543 is an equidigital number, since it uses as much as digits as its factorization.

15342550543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424362 (or 424333 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 15342550543 in words is "fifteen billion, three hundred forty-two million, five hundred fifty thousand, five hundred forty-three".