55314320 has 80 divisors (see below), whose sum is σ = 136836480. Its totient is φ = 20736000.

The previous prime is 55314319. The next prime is 55314349. The reversal of 55314320 is 2341355.

It is a tau number, because it is divible by the number of its divisors (80).

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, 229400 + ... + 229640.

It is an arithmetic number, because the mean of its divisors is an integer number (1710456).

Almost surely, 2^55314320 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 55314320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68418240).

55314320 is an abundant number, since it is smaller than the sum of its proper divisors (81522160).

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

55314320 is a wasteful number, since it uses less digits than its factorization.

55314320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 55314320 is about 7437.3597465767. The cubic root of 55314320 is about 381.0183213038.

Adding to 55314320 its reverse (2341355), we get a palindrome (57655675).

The spelling of 55314320 in words is "fifty-five million, three hundred fourteen thousand, three hundred twenty".