5561131 has 8 divisors (see below), whose sum is σ = 5701104. Its totient is φ = 5422560.

The previous prime is 5561123. The next prime is 5561141. The reversal of 5561131 is 1311655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5561131 - 2³ = 5561123 is a prime.

It is a super-2 number, since 2×5561131² = 61852355998322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561141) 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 7 ways as a sum of consecutive naturals, for example, 16636 + ... + 16966.

It is an arithmetic number, because the mean of its divisors is an integer number (712638).

Almost surely, 2^5561131 is an apocalyptic number.

5561131 is a deficient number, since it is larger than the sum of its proper divisors (139973).

5561131 is a wasteful number, since it uses less digits than its factorization.

5561131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701.

The product of its digits is 450, while the sum is 22.

The square root of 5561131 is about 2358.2050377353. The cubic root of 5561131 is about 177.1689896596.

Adding to 5561131 its reverse (1311655), we get a palindrome (6872786).

The spelling of 5561131 in words is "five million, five hundred sixty-one thousand, one hundred thirty-one".