533221749 has 12 divisors (see below), whose sum is σ = 771746976. Its totient is φ = 354771432.

The previous prime is 533221729. The next prime is 533221771. The reversal of 533221749 is 947122335.

It is not a de Polignac number, because 533221749 - 2²¹ = 531124597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533221709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54367 + ... + 63420.

It is an arithmetic number, because the mean of its divisors is an integer number (64312248).

Almost surely, 2^533221749 is an apocalyptic number.

It is an amenable number.

533221749 is a deficient number, since it is larger than the sum of its proper divisors (238525227).

533221749 is a wasteful number, since it uses less digits than its factorization.

533221749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118296 (or 118293 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 533221749 is about 23091.5947695260. The cubic root of 533221749 is about 810.9037055938.

The spelling of 533221749 in words is "five hundred thirty-three million, two hundred twenty-one thousand, seven hundred forty-nine".