54109312 has 32 divisors (see below), whose sum is σ = 109180800. Its totient is φ = 26707200.

The previous prime is 54109301. The next prime is 54109333. The reversal of 54109312 is 21390145.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×54109312² = 5855635290226688, which contains 22 as substring.

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, 7437 + ... + 12787.

It is an arithmetic number, because the mean of its divisors is an integer number (3411900).

Almost surely, 2^54109312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54109312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54590400).

54109312 is an abundant number, since it is smaller than the sum of its proper divisors (55071488).

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

54109312 is an equidigital number, since it uses as much as digits as its factorization.

54109312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444 (or 5432 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 54109312 is about 7355.9032076286. The cubic root of 54109312 is about 378.2311884174.

Adding to 54109312 its reverse (21390145), we get a palindrome (75499457).

The spelling of 54109312 in words is "fifty-four million, one hundred nine thousand, three hundred twelve".