528013333 has 4 divisors (see below), whose sum is σ = 528066400. Its totient is φ = 527960268.

The previous prime is 528013309. The next prime is 528013351. The reversal of 528013333 is 333310825.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(528013333) divides (528013333-1)³.

It is a cyclic number.

It is not a de Polignac number, because 528013333 - 2⁵ = 528013301 is a prime.

It is a deceptive number, since it divides R_528013332.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528013303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6633 + ... + 33166.

It is an arithmetic number, because the mean of its divisors is an integer number (132016600).

It is a Poulet number, since it divides 2^528013332-1.

Almost surely, 2^528013333 is an apocalyptic number.

528013333 is the 13267-th octagonal number.

It is an amenable number.

528013333 is a deficient number, since it is larger than the sum of its proper divisors (53067).

528013333 is a wasteful number, since it uses less digits than its factorization.

528013333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53066.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 528013333 is about 22978.5407064940. The cubic root of 528013333 is about 808.2548073315.

The spelling of 528013333 in words is "five hundred twenty-eight million, thirteen thousand, three hundred thirty-three".