533221541 has 8 divisors (see below), whose sum is σ = 579847320. Its totient is φ = 488291328.

The previous prime is 533221531. The next prime is 533221561. The reversal of 533221541 is 145122335.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 241802500 + 291419041 = 15550^2 + 17071^2 .

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 533221541 - 2¹⁰ = 533220517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 533221541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533221511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423236 + ... + 424493.

It is an arithmetic number, because the mean of its divisors is an integer number (72480915).

Almost surely, 2^533221541 is an apocalyptic number.

It is an amenable number.

533221541 is a deficient number, since it is larger than the sum of its proper divisors (46625779).

533221541 is a wasteful number, since it uses less digits than its factorization.

533221541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847783.

The product of its digits is 3600, while the sum is 26.

The square root of 533221541 is about 23091.5902657223. The cubic root of 533221541 is about 810.9036001543.

Adding to 533221541 its reverse (145122335), we get a palindrome (678343876).

The spelling of 533221541 in words is "five hundred thirty-three million, two hundred twenty-one thousand, five hundred forty-one".