13554937503 has 6 divisors (see below), whose sum is σ = 19579354184. Its totient is φ = 9036624996.

The previous prime is 13554937499. The next prime is 13554937511. The reversal of 13554937503 is 30573945531.

13554937503 is a `hidden beast` number, since 1 + 3 + 5 + 54 + 93 + 7 + 503 = 666.

It is not a de Polignac number, because 13554937503 - 2² = 13554937499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13554937303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 753052075 + ... + 753052092.

Almost surely, 2^13554937503 is an apocalyptic number.

13554937503 is a deficient number, since it is larger than the sum of its proper divisors (6024416681).

13554937503 is a wasteful number, since it uses less digits than its factorization.

13554937503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506104173 (or 1506104170 counting only the distinct ones).

The product of its (nonzero) digits is 850500, while the sum is 45.

The spelling of 13554937503 in words is "thirteen billion, five hundred fifty-four million, nine hundred thirty-seven thousand, five hundred three".