54517208745715 has 4 divisors (see below), whose sum is σ = 65420650494864. Its totient is φ = 43613766996568.

The previous prime is 54517208745707. The next prime is 54517208745809. The reversal of 54517208745715 is 51754780271545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54517208745715 - 2³ = 54517208745707 is a prime.

It is a super-2 number, since 2×54517208745715² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5451720874567 + ... + 5451720874576.

It is an arithmetic number, because the mean of its divisors is an integer number (16355162623716).

Almost surely, 2^{54517208745715} is an apocalyptic number.

54517208745715 is a deficient number, since it is larger than the sum of its proper divisors (10903441749149).

54517208745715 is a wasteful number, since it uses less digits than its factorization.

54517208745715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10903441749148.

The product of its (nonzero) digits is 54880000, while the sum is 61.

The spelling of 54517208745715 in words is "fifty-four trillion, five hundred seventeen billion, two hundred eight million, seven hundred forty-five thousand, seven hundred fifteen".