533981221 has 8 divisors (see below), whose sum is σ = 540518400. Its totient is φ = 527456160.

The previous prime is 533981219. The next prime is 533981249. The reversal of 533981221 is 122189335.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 533981221 - 2¹ = 533981219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533981821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111486 + ... + 116176.

It is an arithmetic number, because the mean of its divisors is an integer number (67564800).

Almost surely, 2^533981221 is an apocalyptic number.

It is an amenable number.

533981221 is a deficient number, since it is larger than the sum of its proper divisors (6537179).

533981221 is a wasteful number, since it uses less digits than its factorization.

533981221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6059.

The product of its digits is 12960, while the sum is 34.

The square root of 533981221 is about 23108.0336896067. The cubic root of 533981221 is about 811.2885151661.

The spelling of 533981221 in words is "five hundred thirty-three million, nine hundred eighty-one thousand, two hundred twenty-one".