5578596649 has 2 divisors, whose sum is σ = 5578596650. Its totient is φ = 5578596648.

The previous prime is 5578596637. The next prime is 5578596697. The reversal of 5578596649 is 9466958755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4872738025 + 705858624 = 69805^2 + 26568^2 .

It is a cyclic number.

It is not a de Polignac number, because 5578596649 - 2¹¹ = 5578594601 is a prime.

It is a super-2 number, since 2×5578596649² = 62241481144468058402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5578506649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2789298324 + 2789298325.

It is an arithmetic number, because the mean of its divisors is an integer number (2789298325).

Almost surely, 2^5578596649 is an apocalyptic number.

It is an amenable number.

5578596649 is a deficient number, since it is larger than the sum of its proper divisors (1).

5578596649 is an equidigital number, since it uses as much as digits as its factorization.

5578596649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648000, while the sum is 64.

The square root of 5578596649 is about 74690.0036751907. The cubic root of 5578596649 is about 1773.5427196798.

The spelling of 5578596649 in words is "five billion, five hundred seventy-eight million, five hundred ninety-six thousand, six hundred forty-nine".