5517931 has 2 divisors, whose sum is σ = 5517932. Its totient is φ = 5517930.

The previous prime is 5517929. The next prime is 5517943. The reversal of 5517931 is 1397155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5517931 - 2¹ = 5517929 is a prime.

It is a super-2 number, since 2×5517931² = 60895125041522, which contains 22 as substring.

Together with 5517929, it forms a pair of twin primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5517893 and 5517902.

It is not a weakly prime, because it can be changed into another prime (5517901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2758965 + 2758966.

It is an arithmetic number, because the mean of its divisors is an integer number (2758966).

Almost surely, 2^5517931 is an apocalyptic number.

5517931 is a deficient number, since it is larger than the sum of its proper divisors (1).

5517931 is an equidigital number, since it uses as much as digits as its factorization.

5517931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4725, while the sum is 31.

The square root of 5517931 is about 2349.0276711865. The cubic root of 5517931 is about 176.7090349711.

The spelling of 5517931 in words is "five million, five hundred seventeen thousand, nine hundred thirty-one".