5561606653 has 4 divisors (see below), whose sum is σ = 5602202460. Its totient is φ = 5521010848.

The previous prime is 5561606651. The next prime is 5561606657. The reversal of 5561606653 is 3566061655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4833308484 + 728298169 = 69522^2 + 26987^2 .

It is a cyclic number.

It is not a de Polignac number, because 5561606653 - 2¹ = 5561606651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561606651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20297698 + ... + 20297971.

It is an arithmetic number, because the mean of its divisors is an integer number (1400550615).

Almost surely, 2^5561606653 is an apocalyptic number.

It is an amenable number.

5561606653 is a deficient number, since it is larger than the sum of its proper divisors (40595807).

5561606653 is a wasteful number, since it uses less digits than its factorization.

5561606653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40595806.

The product of its (nonzero) digits is 486000, while the sum is 43.

The square root of 5561606653 is about 74576.1801985057. The cubic root of 5561606653 is about 1771.7404070403.

The spelling of 5561606653 in words is "five billion, five hundred sixty-one million, six hundred six thousand, six hundred fifty-three".