5511431 has 2 divisors, whose sum is σ = 5511432. Its totient is φ = 5511430.

The previous prime is 5511403. The next prime is 5511433. The reversal of 5511431 is 1341155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5511431 - 2¹⁸ = 5249287 is a prime.

It is a super-2 number, since 2×5511431² = 60751743335522, which contains 22 as substring.

Together with 5511433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5511433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755715 + 2755716.

It is an arithmetic number, because the mean of its divisors is an integer number (2755716).

Almost surely, 2^5511431 is an apocalyptic number.

5511431 is a deficient number, since it is larger than the sum of its proper divisors (1).

5511431 is an equidigital number, since it uses as much as digits as its factorization.

5511431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 20.

The square root of 5511431 is about 2347.6437123209. The cubic root of 5511431 is about 176.6396212703.

Adding to 5511431 its reverse (1341155), we get a palindrome (6852586).

The spelling of 5511431 in words is "five million, five hundred eleven thousand, four hundred thirty-one".