30550919 has 8 divisors (see below), whose sum is σ = 34986528. Its totient is φ = 26133120.

The previous prime is 30550913. The next prime is 30550939. The reversal of 30550919 is 91905503.

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 30550919 - 2¹² = 30546823 is a prime.

It is a super-2 number, since 2×30550919² = 1866717303489122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30550913) 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, 542 + ... + 7835.

It is an arithmetic number, because the mean of its divisors is an integer number (4373316).

Almost surely, 2^30550919 is an apocalyptic number.

30550919 is a deficient number, since it is larger than the sum of its proper divisors (4435609).

30550919 is an equidigital number, since it uses as much as digits as its factorization.

30550919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8905.

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 30550919 is about 5527.2885757847. The cubic root of 30550919 is about 312.6137621012.

The spelling of 30550919 in words is "thirty million, five hundred fifty thousand, nine hundred nineteen".