53300240 has 60 divisors (see below), whose sum is σ = 144165996. Its totient is φ = 18273024.

The previous prime is 53300213. The next prime is 53300251. The reversal of 53300240 is 4200335.

It can be written as a sum of positive squares in 2 ways, for example, as 11102224 + 42198016 = 3332^2 + 6496^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2879 + ... + 10718.

Almost surely, 2^53300240 is an apocalyptic number.

It is an amenable number.

53300240 is an abundant number, since it is smaller than the sum of its proper divisors (90865756).

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

53300240 is a wasteful number, since it uses less digits than its factorization.

53300240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13624 (or 13611 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 53300240 is about 7300.7013361731. The cubic root of 53300240 is about 376.3365403964.

Adding to 53300240 its reverse (4200335), we get a palindrome (57500575).

The spelling of 53300240 in words is "fifty-three million, three hundred thousand, two hundred forty".