533441661 has 16 divisors (see below), whose sum is σ = 725625216. Its totient is φ = 348460736.

The previous prime is 533441653. The next prime is 533441669. The reversal of 533441661 is 166144335.

It is an interprime number because it is at equal distance from previous prime (533441653) and next prime (533441669).

It is a cyclic number.

It is not a de Polignac number, because 533441661 - 2³ = 533441653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533441669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154591 + ... + 158003.

It is an arithmetic number, because the mean of its divisors is an integer number (45351576).

Almost surely, 2^533441661 is an apocalyptic number.

It is an amenable number.

533441661 is a deficient number, since it is larger than the sum of its proper divisors (192183555).

533441661 is a wasteful number, since it uses less digits than its factorization.

533441661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452.

The product of its digits is 25920, while the sum is 33.

The square root of 533441661 is about 23096.3560112846. The cubic root of 533441661 is about 811.0151682553.

Adding to 533441661 its reverse (166144335), we get a palindrome (699585996).

The spelling of 533441661 in words is "five hundred thirty-three million, four hundred forty-one thousand, six hundred sixty-one".