30280505250293 has 4 divisors (see below), whose sum is σ = 31874216052960. Its totient is φ = 28686794447628.

The previous prime is 30280505250277. The next prime is 30280505250313. The reversal of 30280505250293 is 39205250508203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30280505250293 - 2⁴ = 30280505250277 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 (30280505255293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796855401305 + ... + 796855401342.

It is an arithmetic number, because the mean of its divisors is an integer number (7968554013240).

Almost surely, 2^{30280505250293} is an apocalyptic number.

It is an amenable number.

30280505250293 is a deficient number, since it is larger than the sum of its proper divisors (1593710802667).

30280505250293 is a wasteful number, since it uses less digits than its factorization.

30280505250293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593710802666.

The product of its (nonzero) digits is 648000, while the sum is 44.

Adding to 30280505250293 its reverse (39205250508203), we get a palindrome (69485755758496).

The spelling of 30280505250293 in words is "thirty trillion, two hundred eighty billion, five hundred five million, two hundred fifty thousand, two hundred ninety-three".