53442200 has 96 divisors (see below), whose sum is σ = 144633600. Its totient is φ = 17984640.

The previous prime is 53442199. The next prime is 53442209. The reversal of 53442200 is 224435.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53442209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82277 + ... + 82923.

It is an arithmetic number, because the mean of its divisors is an integer number (1506600).

Almost surely, 2^53442200 is an apocalyptic number.

53442200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53442200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72316800).

53442200 is an abundant number, since it is smaller than the sum of its proper divisors (91191400).

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

53442200 is a wasteful number, since it uses less digits than its factorization.

53442200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 53442200 is about 7310.4172247554. The cubic root of 53442200 is about 376.6703561216.

Adding to 53442200 its reverse (224435), we get a palindrome (53666635).

The spelling of 53442200 in words is "fifty-three million, four hundred forty-two thousand, two hundred".