10503613553 has 2 divisors, whose sum is σ = 10503613554. Its totient is φ = 10503613552.

The previous prime is 10503613537. The next prime is 10503613583. The reversal of 10503613553 is 35531630501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9514636849 + 988976704 = 97543^2 + 31448^2 .

It is an emirp because it is prime and its reverse (35531630501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10503613553 - 2⁴ = 10503613537 is a prime.

It is a super-2 number, since 2×10503613553² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10503613513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5251806776 + 5251806777.

It is an arithmetic number, because the mean of its divisors is an integer number (5251806777).

Almost surely, 2^10503613553 is an apocalyptic number.

It is an amenable number.

10503613553 is a deficient number, since it is larger than the sum of its proper divisors (1).

10503613553 is an equidigital number, since it uses as much as digits as its factorization.

10503613553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20250, while the sum is 32.

The spelling of 10503613553 in words is "ten billion, five hundred three million, six hundred thirteen thousand, five hundred fifty-three".