54323220 has 48 divisors (see below), whose sum is σ = 173835648. Its totient is φ = 12416640.

The previous prime is 54323209. The next prime is 54323221. The reversal of 54323220 is 2232345.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54323221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64251 + ... + 65090.

It is an arithmetic number, because the mean of its divisors is an integer number (3621576).

Almost surely, 2^54323220 is an apocalyptic number.

It is an amenable number.

54323220 is an abundant number, since it is smaller than the sum of its proper divisors (119512428).

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

54323220 is a wasteful number, since it uses less digits than its factorization.

54323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129360 (or 129358 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 54323220 is about 7370.4287527932. The cubic root of 54323220 is about 378.7289480615.

Adding to 54323220 its reverse (2232345), we get a palindrome (56555565).

The spelling of 54323220 in words is "fifty-four million, three hundred twenty-three thousand, two hundred twenty".