5513731 has 2 divisors, whose sum is σ = 5513732. Its totient is φ = 5513730.

The previous prime is 5513723. The next prime is 5513779. The reversal of 5513731 is 1373155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5513731 - 2³ = 5513723 is a prime.

It is a super-2 number, since 2×5513731² = 60802459080722, which contains 22 as substring.

5513731 is a lucky number.

It is equal to p₃₈₁₆₇₀ and since 5513731 and 381670 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 5513696 and 5513705.

It is not a weakly prime, because it can be changed into another prime (5513531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2756865 + 2756866.

It is an arithmetic number, because the mean of its divisors is an integer number (2756866).

Almost surely, 2^5513731 is an apocalyptic number.

5513731 is a deficient number, since it is larger than the sum of its proper divisors (1).

5513731 is an equidigital number, since it uses as much as digits as its factorization.

5513731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1575, while the sum is 25.

The square root of 5513731 is about 2348.1335140916. The cubic root of 5513731 is about 176.6641892774.

Adding to 5513731 its reverse (1373155), we get a palindrome (6886886).

The spelling of 5513731 in words is "five million, five hundred thirteen thousand, seven hundred thirty-one".