10520405503 has 2 divisors, whose sum is σ = 10520405504. Its totient is φ = 10520405502.

The previous prime is 10520405473. The next prime is 10520405543. The reversal of 10520405503 is 30550402501.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10520405503 is a prime.

It is a super-2 number, since 2×10520405503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10520405543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260202751 + 5260202752.

It is an arithmetic number, because the mean of its divisors is an integer number (5260202752).

Almost surely, 2^10520405503 is an apocalyptic number.

10520405503 is a deficient number, since it is larger than the sum of its proper divisors (1).

10520405503 is an equidigital number, since it uses as much as digits as its factorization.

10520405503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 10520405503 in words is "ten billion, five hundred twenty million, four hundred five thousand, five hundred three".