55444641237 has 16 divisors (see below), whose sum is σ = 82232849280. Its totient is φ = 36921406176.

The previous prime is 55444641193. The next prime is 55444641257. The reversal of 55444641237 is 73214644455.

55444641237 is a `hidden beast` number, since 5 + 544 + 4 + 64 + 12 + 37 = 666.

It is not a de Polignac number, because 55444641237 - 2¹² = 55444637141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55444641192 and 55444641201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55444641257) 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 15 ways as a sum of consecutive naturals, for example, 1133608 + ... + 1181505.

It is an arithmetic number, because the mean of its divisors is an integer number (5139553080).

Almost surely, 2^55444641237 is an apocalyptic number.

It is an amenable number.

55444641237 is a deficient number, since it is larger than the sum of its proper divisors (26788208043).

55444641237 is a wasteful number, since it uses less digits than its factorization.

55444641237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316009 (or 2316003 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 45.

The spelling of 55444641237 in words is "fifty-five billion, four hundred forty-four million, six hundred forty-one thousand, two hundred thirty-seven".