54398513217 has 16 divisors (see below), whose sum is σ = 76389965120. Its totient is φ = 34338427200.

The previous prime is 54398513203. The next prime is 54398513251. The reversal of 54398513217 is 71231589345.

It is not a de Polignac number, because 54398513217 - 2⁴ = 54398513201 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (54398513017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150334 + ... + 362487.

It is an arithmetic number, because the mean of its divisors is an integer number (4774372820).

Almost surely, 2^54398513217 is an apocalyptic number.

54398513217 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

54398513217 is a deficient number, since it is larger than the sum of its proper divisors (21991451903).

54398513217 is a wasteful number, since it uses less digits than its factorization.

54398513217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514704.

The product of its digits is 907200, while the sum is 48.

The spelling of 54398513217 in words is "fifty-four billion, three hundred ninety-eight million, five hundred thirteen thousand, two hundred seventeen".