53445800 has 24 divisors (see below), whose sum is σ = 124261950. Its totient is φ = 21378240.

The previous prime is 53445793. The next prime is 53445827. The reversal of 53445800 is 854435.

It can be written as a sum of positive squares in 3 ways, for example, as 24780484 + 28665316 = 4978^2 + 5354^2 .

It is a super-3 number, since 3×53445800³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133415 + ... + 133814.

Almost surely, 2^53445800 is an apocalyptic number.

53445800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53445800 is an abundant number, since it is smaller than the sum of its proper divisors (70816150).

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

53445800 is a wasteful number, since it uses less digits than its factorization.

53445800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267245 (or 267236 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 53445800 is about 7310.6634445856. The cubic root of 53445800 is about 376.6788137502.

It can be divided in two parts, 53445 and 800, that added together give a palindrome (54245).

The spelling of 53445800 in words is "fifty-three million, four hundred forty-five thousand, eight hundred".