53305400 has 48 divisors (see below), whose sum is σ = 124478640. Its totient is φ = 21228800.

The previous prime is 53305381. The next prime is 53305409. The reversal of 53305400 is 450335.

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 (53305409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61772 + ... + 62628.

It is an arithmetic number, because the mean of its divisors is an integer number (2593305).

Almost surely, 2^53305400 is an apocalyptic number.

53305400 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 53305400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62239320).

53305400 is an abundant number, since it is smaller than the sum of its proper divisors (71173240).

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

53305400 is a wasteful number, since it uses less digits than its factorization.

53305400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 53305400 is about 7301.0547183267. The cubic root of 53305400 is about 376.3486843935.

Adding to 53305400 its reverse (450335), we get a palindrome (53755735).

The spelling of 53305400 in words is "fifty-three million, three hundred five thousand, four hundred".