54405372 has 96 divisors (see below), whose sum is σ = 158699520. Its totient is φ = 14146560.

The previous prime is 54405371. The next prime is 54405391. The reversal of 54405372 is 27350445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54405371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43654 + ... + 44882.

It is an arithmetic number, because the mean of its divisors is an integer number (1653120).

Almost surely, 2^54405372 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 54405372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79349760).

54405372 is an abundant number, since it is smaller than the sum of its proper divisors (104294148).

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

54405372 is a wasteful number, since it uses less digits than its factorization.

54405372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1289 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 54405372 is about 7375.9997288503. Note that the first 3 decimals coincide. The cubic root of 54405372 is about 378.9197668290.

The spelling of 54405372 in words is "fifty-four million, four hundred five thousand, three hundred seventy-two".