5511731 has 2 divisors, whose sum is σ = 5511732. Its totient is φ = 5511730.

The previous prime is 5511713. The next prime is 5511739. The reversal of 5511731 is 1371155.

Together with previous prime (5511713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5511731 - 2²² = 1317427 is a prime.

It is a super-2 number, since 2×5511731² = 60758357232722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5511697 and 5511706.

It is not a weakly prime, because it can be changed into another prime (5511739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755865 + 2755866.

It is an arithmetic number, because the mean of its divisors is an integer number (2755866).

Almost surely, 2^5511731 is an apocalyptic number.

5511731 is a deficient number, since it is larger than the sum of its proper divisors (1).

5511731 is an equidigital number, since it uses as much as digits as its factorization.

5511731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 525, while the sum is 23.

The square root of 5511731 is about 2347.7076053035. The cubic root of 5511731 is about 176.6428261805.

Adding to 5511731 its reverse (1371155), we get a palindrome (6882886).

It can be divided in two parts, 5511 and 731, that multiplied together give a triangular number (4028541 = T₂₈₃₈).

The spelling of 5511731 in words is "five million, five hundred eleven thousand, seven hundred thirty-one".