53333280 has 576 divisors, whose sum is σ = 250967808. Its totient is φ = 9953280.

The previous prime is 53333261. The next prime is 53333281. The reversal of 53333280 is 8233335.

It is a happy number.

53333280 is a `hidden beast` number, since 5 + 333 + 328 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53333281) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1441422 + ... + 1441458.

It is an arithmetic number, because the mean of its divisors is an integer number (435708).

Almost surely, 2^53333280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53333280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125483904).

53333280 is an abundant number, since it is smaller than the sum of its proper divisors (197634528).

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

53333280 is a wasteful number, since it uses less digits than its factorization.

53333280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 53333280 is about 7302.9637819176. The cubic root of 53333280 is about 376.4142860809.

It can be divided in two parts, 53 and 333280, that added together give a palindrome (333333).

The spelling of 53333280 in words is "fifty-three million, three hundred thirty-three thousand, two hundred eighty".