5504007581 has 2 divisors, whose sum is σ = 5504007582. Its totient is φ = 5504007580.

The previous prime is 5504007563. The next prime is 5504007671. The reversal of 5504007581 is 1857004055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5484735481 + 19272100 = 74059^2 + 4390^2 .

It is a cyclic number.

It is not a de Polignac number, because 5504007581 - 2¹⁴ = 5503991197 is a prime.

It is a super-2 number, since 2×5504007581² = 60588198903410943122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5504007781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2752003790 + 2752003791.

It is an arithmetic number, because the mean of its divisors is an integer number (2752003791).

Almost surely, 2^5504007581 is an apocalyptic number.

It is an amenable number.

5504007581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5504007581 is an equidigital number, since it uses as much as digits as its factorization.

5504007581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 5504007581 is about 74188.9990564639. Note that the first 3 decimals coincide. The cubic root of 5504007581 is about 1765.6027956008.

The spelling of 5504007581 in words is "five billion, five hundred four million, seven thousand, five hundred eighty-one".