55544207317 has 4 divisors (see below), whose sum is σ = 55583629740. Its totient is φ = 55504784896.

The previous prime is 55544207281. The next prime is 55544207339. The reversal of 55544207317 is 71370244555.

It is a happy number.

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 24598471921 + 30945735396 = 156839^2 + 175914^2 .

It is a cyclic number.

It is not a de Polignac number, because 55544207317 - 2¹⁹ = 55543683029 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 (55544207387) 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, 19709098 + ... + 19711915.

It is an arithmetic number, because the mean of its divisors is an integer number (13895907435).

Almost surely, 2^55544207317 is an apocalyptic number.

It is an amenable number.

55544207317 is a deficient number, since it is larger than the sum of its proper divisors (39422423).

55544207317 is a wasteful number, since it uses less digits than its factorization.

55544207317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39422422.

The product of its (nonzero) digits is 588000, while the sum is 43.

The spelling of 55544207317 in words is "fifty-five billion, five hundred forty-four million, two hundred seven thousand, three hundred seventeen".