533777216 has 56 divisors (see below), whose sum is σ = 1214786496. Its totient is φ = 227957760.

The previous prime is 533777183. The next prime is 533777221. The reversal of 533777216 is 612777335.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135596 + ... + 139476.

It is an arithmetic number, because the mean of its divisors is an integer number (21692616).

Almost surely, 2^533777216 is an apocalyptic number.

533777216 is a gapful number since it is divisible by the number (56) 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 533777216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607393248).

533777216 is an abundant number, since it is smaller than the sum of its proper divisors (681009280).

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

533777216 is a wasteful number, since it uses less digits than its factorization.

533777216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207 (or 4197 counting only the distinct ones).

The product of its digits is 185220, while the sum is 41.

The square root of 533777216 is about 23103.6191104338. The cubic root of 533777216 is about 811.1851856927.

The spelling of 533777216 in words is "five hundred thirty-three million, seven hundred seventy-seven thousand, two hundred sixteen".