30240255 has 8 divisors (see below), whose sum is σ = 48384432. Its totient is φ = 16128128.

The previous prime is 30240251. The next prime is 30240257. The reversal of 30240255 is 55204203.

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 30240255 - 2² = 30240251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30240251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007994 + ... + 1008023.

It is an arithmetic number, because the mean of its divisors is an integer number (6048054).

Almost surely, 2^30240255 is an apocalyptic number.

30240255 is a deficient number, since it is larger than the sum of its proper divisors (18144177).

30240255 is a wasteful number, since it uses less digits than its factorization.

30240255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016025.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 30240255 is about 5499.1140195490. The cubic root of 30240255 is about 311.5505218269.

Adding to 30240255 its reverse (55204203), we get a palindrome (85444458).

The spelling of 30240255 in words is "thirty million, two hundred forty thousand, two hundred fifty-five".