10543005503 has 4 divisors (see below), whose sum is σ = 10543858728. Its totient is φ = 10542152280.

The previous prime is 10543005479. The next prime is 10543005521. The reversal of 10543005503 is 30550034501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10543005503 - 2¹⁸ = 10542743359 is a prime.

It is a super-2 number, since 2×10543005503² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10543005523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407801 + ... + 432882.

It is an arithmetic number, because the mean of its divisors is an integer number (2635964682).

Almost surely, 2^10543005503 is an apocalyptic number.

10543005503 is a deficient number, since it is larger than the sum of its proper divisors (853225).

10543005503 is an equidigital number, since it uses as much as digits as its factorization.

10543005503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853224.

The product of its (nonzero) digits is 4500, while the sum is 26.

The spelling of 10543005503 in words is "ten billion, five hundred forty-three million, five thousand, five hundred three".