5561773657 has 4 divisors (see below), whose sum is σ = 6067389456. Its totient is φ = 5056157860.

The previous prime is 5561773627. The next prime is 5561773673. The reversal of 5561773657 is 7563771655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5561773657 - 2¹⁵ = 5561740889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5561773627) 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 3 ways as a sum of consecutive naturals, for example, 252807883 + ... + 252807904.

It is an arithmetic number, because the mean of its divisors is an integer number (1516847364).

Almost surely, 2^5561773657 is an apocalyptic number.

It is an amenable number.

5561773657 is a deficient number, since it is larger than the sum of its proper divisors (505615799).

5561773657 is a wasteful number, since it uses less digits than its factorization.

5561773657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505615798.

The product of its digits is 4630500, while the sum is 52.

The square root of 5561773657 is about 74577.2998773756. The cubic root of 5561773657 is about 1771.7581408111.

The spelling of 5561773657 in words is "five billion, five hundred sixty-one million, seven hundred seventy-three thousand, six hundred fifty-seven".