533249561 has 8 divisors (see below), whose sum is σ = 574809480. Its totient is φ = 491766912.

The previous prime is 533249551. The next prime is 533249603. The reversal of 533249561 is 165942335.

It can be written as a sum of positive squares in 4 ways, for example, as 25603600 + 507645961 = 5060^2 + 22531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 533249561 - 2¹⁴ = 533233177 is a prime.

It is a super-4 number, since 4×533249561⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (533249551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4556 + ... + 32973.

It is an arithmetic number, because the mean of its divisors is an integer number (71851185).

Almost surely, 2^533249561 is an apocalyptic number.

It is an amenable number.

533249561 is a deficient number, since it is larger than the sum of its proper divisors (41559919).

533249561 is a wasteful number, since it uses less digits than its factorization.

533249561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38635.

The product of its digits is 97200, while the sum is 38.

The square root of 533249561 is about 23092.1969721376. The cubic root of 533249561 is about 810.9178038321.

The spelling of 533249561 in words is "five hundred thirty-three million, two hundred forty-nine thousand, five hundred sixty-one".