30216055 has 8 divisors (see below), whose sum is σ = 38392272. Its totient is φ = 22750848.

The previous prime is 30216049. The next prime is 30216077. The reversal of 30216055 is 55061203.

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 30216055 - 2³ = 30216047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177657 + ... + 177826.

It is an arithmetic number, because the mean of its divisors is an integer number (4799034).

Almost surely, 2^30216055 is an apocalyptic number.

30216055 is a deficient number, since it is larger than the sum of its proper divisors (8176217).

30216055 is a wasteful number, since it uses less digits than its factorization.

30216055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355505.

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

The square root of 30216055 is about 5496.9132247108. The cubic root of 30216055 is about 311.4673927361.

Adding to 30216055 its reverse (55061203), we get a palindrome (85277258).

The spelling of 30216055 in words is "thirty million, two hundred sixteen thousand, fifty-five".