5561615650 has 24 divisors (see below), whose sum is σ = 10701318420. Its totient is φ = 2147933760.

The previous prime is 5561615627. The next prime is 5561615651. The reversal of 5561615650 is 565161655.

It can be written as a sum of positive squares in 6 ways, for example, as 930677049 + 4630938601 = 30507^2 + 68051^2 .

It is not an unprimeable number, because it can be changed into a prime (5561615651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1916349 + ... + 1919248.

Almost surely, 2^5561615650 is an apocalyptic number.

5561615650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5561615650 is a deficient number, since it is larger than the sum of its proper divisors (5139702770).

5561615650 is a wasteful number, since it uses less digits than its factorization.

5561615650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835638 (or 3835633 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 5561615650 is about 74576.2405193504. The cubic root of 5561615650 is about 1771.7413624201.

The spelling of 5561615650 in words is "five billion, five hundred sixty-one million, six hundred fifteen thousand, six hundred fifty".