5581431 has 6 divisors (see below), whose sum is σ = 8062080. Its totient is φ = 3720948.

The previous prime is 5581403. The next prime is 5581447. The reversal of 5581431 is 1341855.

It is not a de Polignac number, because 5581431 - 2⁹ = 5580919 is a prime.

It is a super-2 number, since 2×5581431² = 62304744015522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5581395 and 5581404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 310071 + ... + 310088.

It is an arithmetic number, because the mean of its divisors is an integer number (1343680).

Almost surely, 2^5581431 is an apocalyptic number.

5581431 is a deficient number, since it is larger than the sum of its proper divisors (2480649).

5581431 is a wasteful number, since it uses less digits than its factorization.

5581431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620165 (or 620162 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 5581431 is about 2362.5052380894. The cubic root of 5581431 is about 177.3843033648.

The spelling of 5581431 in words is "five million, five hundred eighty-one thousand, four hundred thirty-one".