5040661 has 2 divisors, whose sum is σ = 5040662. Its totient is φ = 5040660.

The previous prime is 5040649. The next prime is 5040667. The reversal of 5040661 is 1660405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2992900 + 2047761 = 1730^2 + 1431^2 .

It is a cyclic number.

It is not a de Polignac number, because 5040661 - 2⁷ = 5040533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5040667) 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, 2520330 + 2520331.

It is an arithmetic number, because the mean of its divisors is an integer number (2520331).

Almost surely, 2^5040661 is an apocalyptic number.

It is an amenable number.

5040661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5040661 is an equidigital number, since it uses as much as digits as its factorization.

5040661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 5040661 is about 2245.1416436385. The cubic root of 5040661 is about 171.4598726904.

The spelling of 5040661 in words is "five million, forty thousand, six hundred sixty-one".