54311320 has 64 divisors (see below), whose sum is σ = 142663680. Its totient is φ = 18220416.

The previous prime is 54311317. The next prime is 54311333. The reversal of 54311320 is 2311345.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11097 + ... + 15223.

It is an arithmetic number, because the mean of its divisors is an integer number (2229120).

Almost surely, 2^54311320 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 54311320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71331840).

54311320 is an abundant number, since it is smaller than the sum of its proper divisors (88352360).

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

54311320 is a wasteful number, since it uses less digits than its factorization.

54311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4192 (or 4188 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 54311320 is about 7369.6214285403. The cubic root of 54311320 is about 378.7012913577.

Adding to 54311320 its reverse (2311345), we get a palindrome (56622665).

The spelling of 54311320 in words is "fifty-four million, three hundred eleven thousand, three hundred twenty".