55444566101 has 4 divisors (see below), whose sum is σ = 55935226092. Its totient is φ = 54953906112.

The previous prime is 55444566091. The next prime is 55444566113. The reversal of 55444566101 is 10166544455.

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 25073139025 + 30371427076 = 158345^2 + 174274^2 .

It is a cyclic number.

It is not a de Polignac number, because 55444566101 - 2³⁴ = 38264696917 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 (55444566161) 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, 245329826 + ... + 245330051.

It is an arithmetic number, because the mean of its divisors is an integer number (13983806523).

Almost surely, 2^55444566101 is an apocalyptic number.

It is an amenable number.

55444566101 is a deficient number, since it is larger than the sum of its proper divisors (490659991).

55444566101 is a wasteful number, since it uses less digits than its factorization.

55444566101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490659990.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 55444566101 in words is "fifty-five billion, four hundred forty-four million, five hundred sixty-six thousand, one hundred one".