5540665241 has 2 divisors, whose sum is σ = 5540665242. Its totient is φ = 5540665240.

The previous prime is 5540665199. The next prime is 5540665243. The reversal of 5540665241 is 1425660455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5464905625 + 75759616 = 73925^2 + 8704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5540665241 is a prime.

Together with 5540665243, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5540665195 and 5540665204.

It is not a weakly prime, because it can be changed into another prime (5540665243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770332620 + 2770332621.

It is an arithmetic number, because the mean of its divisors is an integer number (2770332621).

Almost surely, 2^5540665241 is an apocalyptic number.

It is an amenable number.

5540665241 is a deficient number, since it is larger than the sum of its proper divisors (1).

5540665241 is an equidigital number, since it uses as much as digits as its factorization.

5540665241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 5540665241 is about 74435.6449626118. The cubic root of 5540665241 is about 1769.5138674742.

The spelling of 5540665241 in words is "five billion, five hundred forty million, six hundred sixty-five thousand, two hundred forty-one".