5503431 has 4 divisors (see below), whose sum is σ = 7337912. Its totient is φ = 3668952.

The previous prime is 5503429. The next prime is 5503451. The reversal of 5503431 is 1343055.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5503431 - 2¹ = 5503429 is a prime.

It is a super-3 number, since 3×5503431³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

5503431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5503398 and 5503407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5503411) 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, 917236 + ... + 917241.

It is an arithmetic number, because the mean of its divisors is an integer number (1834478).

Almost surely, 2^5503431 is an apocalyptic number.

5503431 is a deficient number, since it is larger than the sum of its proper divisors (1834481).

5503431 is a wasteful number, since it uses less digits than its factorization.

5503431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834480.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 5503431 is about 2345.9392575257. The cubic root of 5503431 is about 176.5541140612.

Adding to 5503431 its reverse (1343055), we get a palindrome (6846486).

The spelling of 5503431 in words is "five million, five hundred three thousand, four hundred thirty-one".