52221533 has 8 divisors (see below), whose sum is σ = 64272768. Its totient is φ = 41318064.

The previous prime is 52221527. The next prime is 52221553. The reversal of 52221533 is 33512225.

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 52221533 - 2⁶ = 52221469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52221499 and 52221508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52221553) 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, 286841 + ... + 287022.

It is an arithmetic number, because the mean of its divisors is an integer number (8034096).

Almost surely, 2^52221533 is an apocalyptic number.

It is an amenable number.

52221533 is a deficient number, since it is larger than the sum of its proper divisors (12051235).

52221533 is a wasteful number, since it uses less digits than its factorization.

52221533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573883.

The product of its digits is 1800, while the sum is 23.

The square root of 52221533 is about 7226.4467755599. The cubic root of 52221533 is about 373.7804124348.

Adding to 52221533 its reverse (33512225), we get a palindrome (85733758).

The spelling of 52221533 in words is "fifty-two million, two hundred twenty-one thousand, five hundred thirty-three".