30205315254 has 32 divisors (see below), whose sum is σ = 62052687360. Its totient is φ = 9797239712.

The previous prime is 30205315247. The next prime is 30205315297. The reversal of 30205315254 is 45251350203.

It is a super-2 number, since 2×30205315254² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260784 + ... + 358355.

It is an arithmetic number, because the mean of its divisors is an integer number (1939146480).

Almost surely, 2^30205315254 is an apocalyptic number.

30205315254 is an abundant number, since it is smaller than the sum of its proper divisors (31847372106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30205315254 is a wasteful number, since it uses less digits than its factorization.

30205315254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619364.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 30205315254 its reverse (45251350203), we get a palindrome (75456665457).

The spelling of 30205315254 in words is "thirty billion, two hundred five million, three hundred fifteen thousand, two hundred fifty-four".