55120515413317 has 4 divisors (see below), whose sum is σ = 55122148599136. Its totient is φ = 55118882227500.

The previous prime is 55120515413291. The next prime is 55120515413351. The reversal of 55120515413317 is 71331451502155.

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 a de Polignac number, because none of the positive numbers 2^k-55120515413317 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 (55120515413357) 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, 816542283 + ... + 816609784.

It is an arithmetic number, because the mean of its divisors is an integer number (13780537149784).

Almost surely, 2^{55120515413317} is an apocalyptic number.

It is an amenable number.

55120515413317 is a deficient number, since it is larger than the sum of its proper divisors (1633185819).

55120515413317 is a wasteful number, since it uses less digits than its factorization.

55120515413317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633185818.

The product of its (nonzero) digits is 315000, while the sum is 43.

The spelling of 55120515413317 in words is "fifty-five trillion, one hundred twenty billion, five hundred fifteen million, four hundred thirteen thousand, three hundred seventeen".