54516545817407 has 4 divisors (see below), whose sum is σ = 54536655206256. Its totient is φ = 54496436428560.

The previous prime is 54516545817379. The next prime is 54516545817467. The reversal of 54516545817407 is 70471854561545.

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 54516545817407 - 2²⁰ = 54516544768831 is a prime.

It is a super-2 number, since 2×54516545817407² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54516545817407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54516545817467) 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, 10054690358 + ... + 10054695779.

It is an arithmetic number, because the mean of its divisors is an integer number (13634163801564).

Almost surely, 2^{54516545817407} is an apocalyptic number.

54516545817407 is a deficient number, since it is larger than the sum of its proper divisors (20109388849).

54516545817407 is a wasteful number, since it uses less digits than its factorization.

54516545817407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20109388848.

The product of its (nonzero) digits is 94080000, while the sum is 62.

The spelling of 54516545817407 in words is "fifty-four trillion, five hundred sixteen billion, five hundred forty-five million, eight hundred seventeen thousand, four hundred seven".