54109428 has 12 divisors (see below), whose sum is σ = 126255360. Its totient is φ = 18036472.

The previous prime is 54109427. The next prime is 54109483. The reversal of 54109428 is 82490145.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54109427) 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, 2254548 + ... + 2254571.

It is an arithmetic number, because the mean of its divisors is an integer number (10521280).

Almost surely, 2^54109428 is an apocalyptic number.

It is an amenable number.

54109428 is an abundant number, since it is smaller than the sum of its proper divisors (72145932).

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

54109428 is a wasteful number, since it uses less digits than its factorization.

54109428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509126 (or 4509124 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 54109428 is about 7355.9110924480. The cubic root of 54109428 is about 378.2314587023.

The spelling of 54109428 in words is "fifty-four million, one hundred nine thousand, four hundred twenty-eight".