54518517515577 has 8 divisors (see below), whose sum is σ = 72925090954560. Its totient is φ = 36228811210160.

The previous prime is 54518517515533. The next prime is 54518517515647. The reversal of 54518517515577 is 77551571581545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54518517515577 - 2¹⁵ = 54518517482809 is a prime.

It is a super-2 number, since 2×54518517515577² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54518517515477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29216782302 + ... + 29216784167.

It is an arithmetic number, because the mean of its divisors is an integer number (9115636369320).

Almost surely, 2^{54518517515577} is an apocalyptic number.

It is an amenable number.

54518517515577 is a deficient number, since it is larger than the sum of its proper divisors (18406573438983).

54518517515577 is a wasteful number, since it uses less digits than its factorization.

54518517515577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58433566783.

The product of its digits is 171500000, while the sum is 66.

The spelling of 54518517515577 in words is "fifty-four trillion, five hundred eighteen billion, five hundred seventeen million, five hundred fifteen thousand, five hundred seventy-seven".