5578762561 has 2 divisors, whose sum is σ = 5578762562. Its totient is φ = 5578762560.

The previous prime is 5578762559. The next prime is 5578762597. The reversal of 5578762561 is 1652678755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5333526961 + 245235600 = 73031^2 + 15660^2 .

It is a cyclic number.

It is not a de Polignac number, because 5578762561 - 2¹ = 5578762559 is a prime.

It is a super-2 number, since 2×5578762561² = 62245183424030557442, which contains 22 as substring.

Together with 5578762559, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 5578762499 and 5578762508.

It is not a weakly prime, because it can be changed into another prime (5578765561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2789381280 + 2789381281.

It is an arithmetic number, because the mean of its divisors is an integer number (2789381281).

Almost surely, 2^5578762561 is an apocalyptic number.

It is an amenable number.

5578762561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5578762561 is an equidigital number, since it uses as much as digits as its factorization.

5578762561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528000, while the sum is 52.

The square root of 5578762561 is about 74691.1143376506. The cubic root of 5578762561 is about 1773.5603017063.

The spelling of 5578762561 in words is "five billion, five hundred seventy-eight million, seven hundred sixty-two thousand, five hundred sixty-one".