30255293 has 4 divisors (see below), whose sum is σ = 30285948. Its totient is φ = 30224640.

The previous prime is 30255229. The next prime is 30255299. The reversal of 30255293 is 39255203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25836889 + 4418404 = 5083^2 + 2102^2 .

It is a cyclic number.

It is not a de Polignac number, because 30255293 - 2⁶ = 30255229 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 (30255299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13796 + ... + 15837.

It is an arithmetic number, because the mean of its divisors is an integer number (7571487).

Almost surely, 2^30255293 is an apocalyptic number.

It is an amenable number.

30255293 is a deficient number, since it is larger than the sum of its proper divisors (30655).

30255293 is a wasteful number, since it uses less digits than its factorization.

30255293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30654.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 30255293 is about 5500.4811607713. The cubic root of 30255293 is about 311.6021563160.

The spelling of 30255293 in words is "thirty million, two hundred fifty-five thousand, two hundred ninety-three".