30055649 has 8 divisors (see below), whose sum is σ = 32824512. Its totient is φ = 27352080.

The previous prime is 30055621. The next prime is 30055651. The reversal of 30055649 is 94655003.

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 30055649 - 2⁸ = 30055393 is a prime.

It is a super-2 number, since 2×30055649² = 1806684073622402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30055349) 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, 15359 + ... + 17204.

It is an arithmetic number, because the mean of its divisors is an integer number (4103064).

Almost surely, 2^30055649 is an apocalyptic number.

It is an amenable number.

30055649 is a deficient number, since it is larger than the sum of its proper divisors (2768863).

30055649 is a wasteful number, since it uses less digits than its factorization.

30055649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32647.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 30055649 is about 5482.3032568438. The cubic root of 30055649 is about 310.9152590120.

The spelling of 30055649 in words is "thirty million, fifty-five thousand, six hundred forty-nine".