554145503 has 4 divisors (see below), whose sum is σ = 554206008. Its totient is φ = 554085000.

The previous prime is 554145457. The next prime is 554145521. The reversal of 554145503 is 305541455.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 554145503 - 2¹⁴ = 554129119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 554145503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554145563) 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, 13376 + ... + 35877.

It is an arithmetic number, because the mean of its divisors is an integer number (138551502).

Almost surely, 2^554145503 is an apocalyptic number.

554145503 is a deficient number, since it is larger than the sum of its proper divisors (60505).

554145503 is a wasteful number, since it uses less digits than its factorization.

554145503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60504.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 554145503 is about 23540.2953040101. The cubic root of 554145503 is about 821.3746044718.

Adding to 554145503 its reverse (305541455), we get a palindrome (859686958).

The spelling of 554145503 in words is "five hundred fifty-four million, one hundred forty-five thousand, five hundred three".