30550261 has 8 divisors (see below), whose sum is σ = 35066304. Its totient is φ = 26072160.

The previous prime is 30550237. The next prime is 30550291. The reversal of 30550261 is 16205503.

It is a happy number.

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 30550261 - 2⁹ = 30549749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30550211) 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, 7735 + ... + 10996.

It is an arithmetic number, because the mean of its divisors is an integer number (4383288).

Almost surely, 2^30550261 is an apocalyptic number.

It is an amenable number.

30550261 is a deficient number, since it is larger than the sum of its proper divisors (4516043).

30550261 is a wasteful number, since it uses less digits than its factorization.

30550261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18971.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 30550261 is about 5527.2290526085. The cubic root of 30550261 is about 312.6115177461.

Adding to 30550261 its reverse (16205503), we get a palindrome (46755764).

The spelling of 30550261 in words is "thirty million, five hundred fifty thousand, two hundred sixty-one".