55604349517 has 4 divisors (see below), whose sum is σ = 55729867680. Its totient is φ = 55478831356.

The previous prime is 55604349491. The next prime is 55604349539. The reversal of 55604349517 is 71594340655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55604349517 - 2¹⁹ = 55603825229 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55604343517) 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, 62758417 + ... + 62759302.

It is an arithmetic number, because the mean of its divisors is an integer number (13932466920).

Almost surely, 2^55604349517 is an apocalyptic number.

It is an amenable number.

55604349517 is a deficient number, since it is larger than the sum of its proper divisors (125518163).

55604349517 is a wasteful number, since it uses less digits than its factorization.

55604349517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125518162.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 55604349517 in words is "fifty-five billion, six hundred four million, three hundred forty-nine thousand, five hundred seventeen".