53250400 has 144 divisors (see below), whose sum is σ = 153177696. Its totient is φ = 17694720.

The previous prime is 53250397. The next prime is 53250413. The reversal of 53250400 is 405235.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207072 + ... + 207328.

It is an arithmetic number, because the mean of its divisors is an integer number (1063734).

Almost surely, 2^53250400 is an apocalyptic number.

53250400 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 53250400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76588848).

53250400 is an abundant number, since it is smaller than the sum of its proper divisors (99927296).

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

53250400 is a wasteful number, since it uses less digits than its factorization.

53250400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 53250400 is about 7297.2871671601. The cubic root of 53250400 is about 376.2192021972.

Adding to 53250400 its reverse (405235), we get a palindrome (53655635).

The spelling of 53250400 in words is "fifty-three million, two hundred fifty thousand, four hundred".