5611431 has 24 divisors (see below), whose sum is σ = 8864640. Its totient is φ = 3147312.

The previous prime is 5611423. The next prime is 5611433. The reversal of 5611431 is 1341165.

It is not a de Polignac number, because 5611431 - 2³ = 5611423 is a prime.

It is a super-2 number, since 2×5611431² = 62976315735522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 5611398 and 5611407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5611433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8350 + ... + 8996.

It is an arithmetic number, because the mean of its divisors is an integer number (369360).

Almost surely, 2^5611431 is an apocalyptic number.

5611431 is a deficient number, since it is larger than the sum of its proper divisors (3253209).

5611431 is a wasteful number, since it uses less digits than its factorization.

5611431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 716 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 5611431 is about 2368.8459215407. The cubic root of 5611431 is about 177.7015471638.

Adding to 5611431 its reverse (1341165), we get a palindrome (6952596).

The spelling of 5611431 in words is "five million, six hundred eleven thousand, four hundred thirty-one".