30520297226 has 16 divisors (see below), whose sum is σ = 47192573160. Its totient is φ = 14792506560.

The previous prime is 30520297193. The next prime is 30520297229. The reversal of 30520297226 is 62279202503.

It can be written as a sum of positive squares in 4 ways, for example, as 14544601201 + 15975696025 = 120601^2 + 126395^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30520297226.

It is not an unprimeable number, because it can be changed into a prime (30520297229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746705 + ... + 786516.

Almost surely, 2^30520297226 is an apocalyptic number.

30520297226 is a deficient number, since it is larger than the sum of its proper divisors (16672275934).

30520297226 is a wasteful number, since it uses less digits than its factorization.

30520297226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533529.

The product of its (nonzero) digits is 90720, while the sum is 38.

Adding to 30520297226 its reverse (62279202503), we get a palindrome (92799499729).

The spelling of 30520297226 in words is "thirty billion, five hundred twenty million, two hundred ninety-seven thousand, two hundred twenty-six".