5561616530 has 16 divisors (see below), whose sum is σ = 10028513880. Its totient is φ = 2220734592.

The previous prime is 5561616509. The next prime is 5561616547. The reversal of 5561616530 is 356161655.

It can be written as a sum of positive squares in 4 ways, for example, as 4535887801 + 1025728729 = 67349^2 + 32027^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 483029 + ... + 494408.

Almost surely, 2^5561616530 is an apocalyptic number.

5561616530 is a deficient number, since it is larger than the sum of its proper divisors (4466897350).

5561616530 is a wasteful number, since it uses less digits than its factorization.

5561616530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978013.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 5561616530 is about 74576.2464193526. The cubic root of 5561616530 is about 1771.7414558661.

The spelling of 5561616530 in words is "five billion, five hundred sixty-one million, six hundred sixteen thousand, five hundred thirty".