5580781 has 2 divisors, whose sum is σ = 5580782. Its totient is φ = 5580780.

The previous prime is 5580769. The next prime is 5580787. The reversal of 5580781 is 1870855.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5447556 + 133225 = 2334^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 5580781 - 2⁹ = 5580269 is a prime.

It is a super-2 number, since 2×5580781² = 62290233139922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5580787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2790390 + 2790391.

It is an arithmetic number, because the mean of its divisors is an integer number (2790391).

Almost surely, 2^5580781 is an apocalyptic number.

It is an amenable number.

5580781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5580781 is an equidigital number, since it uses as much as digits as its factorization.

5580781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 34.

The square root of 5580781 is about 2362.3676682515. The cubic root of 5580781 is about 177.3774171813.

The spelling of 5580781 in words is "five million, five hundred eighty thousand, seven hundred eighty-one".