30280255 has 8 divisors (see below), whose sum is σ = 36469152. Its totient is φ = 24135648.

The previous prime is 30280253. The next prime is 30280291. The reversal of 30280255 is 55208203.

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 30280255 - 2¹ = 30280253 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 (30280253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9547 + ... + 12316.

It is an arithmetic number, because the mean of its divisors is an integer number (4558644).

Almost surely, 2^30280255 is an apocalyptic number.

30280255 is a deficient number, since it is larger than the sum of its proper divisors (6188897).

30280255 is a wasteful number, since it uses less digits than its factorization.

30280255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22145.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 30280255 is about 5502.7497671619. The cubic root of 30280255 is about 311.6878281011.

Adding to 30280255 its reverse (55208203), we get a palindrome (85488458).

The spelling of 30280255 in words is "thirty million, two hundred eighty thousand, two hundred fifty-five".