10506135503 has 4 divisors (see below), whose sum is σ = 10639124640. Its totient is φ = 10373146368.

The previous prime is 10506135491. The next prime is 10506135517. The reversal of 10506135503 is 30553160501.

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 10506135503 - 2¹² = 10506131407 is a prime.

It is a super-2 number, since 2×10506135503² (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 (10506135203) 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, 66494450 + ... + 66494607.

It is an arithmetic number, because the mean of its divisors is an integer number (2659781160).

Almost surely, 2^10506135503 is an apocalyptic number.

10506135503 is a deficient number, since it is larger than the sum of its proper divisors (132989137).

10506135503 is an equidigital number, since it uses as much as digits as its factorization.

10506135503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132989136.

The product of its (nonzero) digits is 6750, while the sum is 29.

The spelling of 10506135503 in words is "ten billion, five hundred six million, one hundred thirty-five thousand, five hundred three".