54431216 has 20 divisors (see below), whose sum is σ = 120526512. Its totient is φ = 23327616.

The previous prime is 54431213. The next prime is 54431233. The reversal of 54431216 is 61213445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54431213) 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, 242885 + ... + 243108.

Almost surely, 2^54431216 is an apocalyptic number.

54431216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

54431216 is an abundant number, since it is smaller than the sum of its proper divisors (66095296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54431216 is a wasteful number, since it uses less digits than its factorization.

54431216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486008 (or 486002 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 54431216 is about 7377.7514189623. The cubic root of 54431216 is about 378.9797563232.

The spelling of 54431216 in words is "fifty-four million, four hundred thirty-one thousand, two hundred sixteen".