30478255 has 8 divisors (see below), whose sum is σ = 36607824. Its totient is φ = 24360000.

The previous prime is 30478219. The next prime is 30478277. The reversal of 30478255 is 55287403.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-30478255 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30478255.

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, 5155 + ... + 9355.

It is an arithmetic number, because the mean of its divisors is an integer number (4575978).

Almost surely, 2^30478255 is an apocalyptic number.

30478255 is a deficient number, since it is larger than the sum of its proper divisors (6129569).

30478255 is a wasteful number, since it uses less digits than its factorization.

30478255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5657.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 30478255 is about 5520.7114577743. The cubic root of 30478255 is about 312.3657193748.

The spelling of 30478255 in words is "thirty million, four hundred seventy-eight thousand, two hundred fifty-five".