53303400 has 96 divisors (see below), whose sum is σ = 183619200. Its totient is φ = 14212800.

The previous prime is 53303399. The next prime is 53303401. The reversal of 53303400 is 430335.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53303399) and next prime (53303401).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (53303401) 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, 465 + ... + 10335.

It is an arithmetic number, because the mean of its divisors is an integer number (1912700).

Almost surely, 2^53303400 is an apocalyptic number.

53303400 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 53303400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91809600).

53303400 is an abundant number, since it is smaller than the sum of its proper divisors (130315800).

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

53303400 is a wasteful number, since it uses less digits than its factorization.

53303400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9896 (or 9881 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 53303400 is about 7300.9177505297. The cubic root of 53303400 is about 376.3439775109.

Adding to 53303400 its reverse (430335), we get a palindrome (53733735).

The spelling of 53303400 in words is "fifty-three million, three hundred three thousand, four hundred".