55600005551 has 4 divisors (see below), whose sum is σ = 55601520000. Its totient is φ = 55598491104.

The previous prime is 55600005533. The next prime is 55600005553. The reversal of 55600005551 is 15550000655.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55600005551 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 (55600005553) 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, 700751 + ... + 776048.

It is an arithmetic number, because the mean of its divisors is an integer number (13900380000).

Almost surely, 2^55600005551 is an apocalyptic number.

55600005551 is a deficient number, since it is larger than the sum of its proper divisors (1514449).

55600005551 is a wasteful number, since it uses less digits than its factorization.

55600005551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514448.

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 55600005551 in words is "fifty-five billion, six hundred million, five thousand, five hundred fifty-one".