30532261 has 8 divisors (see below), whose sum is σ = 31016664. Its totient is φ = 30051840.

The previous prime is 30532237. The next prime is 30532267. The reversal of 30532261 is 16223503.

It can be written as a sum of positive squares in 4 ways, for example, as 216225 + 30316036 = 465^2 + 5506^2 .

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 30532261 - 2⁹ = 30531749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30532267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16881 + ... + 18601.

It is an arithmetic number, because the mean of its divisors is an integer number (3877083).

Almost surely, 2^30532261 is an apocalyptic number.

It is an amenable number.

30532261 is a deficient number, since it is larger than the sum of its proper divisors (484403).

30532261 is a wasteful number, since it uses less digits than its factorization.

30532261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 30532261 is about 5525.6005103518. The cubic root of 30532261 is about 312.5501095112.

Adding to 30532261 its reverse (16223503), we get a palindrome (46755764).

The spelling of 30532261 in words is "thirty million, five hundred thirty-two thousand, two hundred sixty-one".