5531503 has 4 divisors (see below), whose sum is σ = 5536648. Its totient is φ = 5526360.

The previous prime is 5531497. The next prime is 5531507. The reversal of 5531503 is 3051355.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3051355 = 5 ⋅610271.

It is a cyclic number.

It is not a de Polignac number, because 5531503 - 2²¹ = 3434351 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 (5531507) 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, 276 + ... + 3337.

It is an arithmetic number, because the mean of its divisors is an integer number (1384162).

Almost surely, 2^5531503 is an apocalyptic number.

5531503 is a deficient number, since it is larger than the sum of its proper divisors (5145).

5531503 is a wasteful number, since it uses less digits than its factorization.

5531503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144.

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 5531503 is about 2351.9147518565. The cubic root of 5531503 is about 176.8537952329.

Adding to 5531503 its reverse (3051355), we get a palindrome (8582858).

The spelling of 5531503 in words is "five million, five hundred thirty-one thousand, five hundred three".