533101921 has 9 divisors (see below), whose sum is σ = 586250833. Its totient is φ = 484407220.

The previous prime is 533101873. The next prime is 533101939. The reversal of 533101921 is 129101335.

The square root of 533101921 is 23089.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 533101921 - 2¹¹ = 533099873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (533101951) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 252930 + ... + 255028.

Almost surely, 2^533101921 is an apocalyptic number.

533101921 is the 23089-th square number.

533101921 is the 11545-th centered octagonal number.

It is an amenable number.

533101921 is a deficient number, since it is larger than the sum of its proper divisors (53148912).

533101921 is an frugal number, since it uses more digits than its factorization.

533101921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 25.

The cubic root of 533101921 is about 810.8429577286.

Multiplying 533101921 by its sum of digits (25), we get a square (13327548025 = 115445²).

The spelling of 533101921 in words is "five hundred thirty-three million, one hundred one thousand, nine hundred twenty-one".