533537280 has 400 divisors, whose sum is σ = 1996372224. Its totient is φ = 136028160.

The previous prime is 533537227. The next prime is 533537341. The reversal of 533537280 is 82735335.

533537280 is a `hidden beast` number, since 533 + 53 + 72 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6428119 + ... + 6428201.

Almost surely, 2^533537280 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 533537280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (998186112).

533537280 is an abundant number, since it is smaller than the sum of its proper divisors (1462834944).

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

533537280 is an equidigital number, since it uses as much as digits as its factorization.

533537280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 533537280 is about 23098.4259203955. The cubic root of 533537280 is about 811.0636233049.

The spelling of 533537280 in words is "five hundred thirty-three million, five hundred thirty-seven thousand, two hundred eighty".