55671055657 has 6 divisors (see below), whose sum is σ = 64760207658. Its totient is φ = 47718047664.

The previous prime is 55671055651. The next prime is 55671055703. The reversal of 55671055657 is 75655017655.

It can be written as a sum of positive squares in only one way, i.e., 45890636841 + 9780418816 = 214221^2 + 98896^2 .

It is not a de Polignac number, because 55671055657 - 2¹⁵ = 55671022889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55671055651) 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 5 ways as a sum of consecutive naturals, for example, 568071948 + ... + 568072045.

It is an arithmetic number, because the mean of its divisors is an integer number (10793367943).

Almost surely, 2^55671055657 is an apocalyptic number.

It is an amenable number.

55671055657 is a deficient number, since it is larger than the sum of its proper divisors (9089152001).

55671055657 is a wasteful number, since it uses less digits than its factorization.

55671055657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136144007 (or 1136144000 counting only the distinct ones).

The product of its (nonzero) digits is 5512500, while the sum is 52.

The spelling of 55671055657 in words is "fifty-five billion, six hundred seventy-one million, fifty-five thousand, six hundred fifty-seven".