30105007505 has 4 divisors (see below), whose sum is σ = 36126009012. Its totient is φ = 24084006000.

The previous prime is 30105007483. The next prime is 30105007507. The reversal of 30105007505 is 50570050103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50570050103 = 97387 ⋅519269.

It can be written as a sum of positive squares in 2 ways, for example, as 18571965841 + 11533041664 = 136279^2 + 107392^2 .

It is not a de Polignac number, because 30105007505 - 2¹⁴ = 30104991121 is a prime.

It is a super-2 number, since 2×30105007505² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30105007507) 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 3 ways as a sum of consecutive naturals, for example, 3010500746 + ... + 3010500755.

It is an arithmetic number, because the mean of its divisors is an integer number (9031502253).

Almost surely, 2^30105007505 is an apocalyptic number.

It is an amenable number.

30105007505 is a deficient number, since it is larger than the sum of its proper divisors (6021001507).

30105007505 is an equidigital number, since it uses as much as digits as its factorization.

30105007505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021001506.

The product of its (nonzero) digits is 2625, while the sum is 26.

Adding to 30105007505 its reverse (50570050103), we get a palindrome (80675057608).

The spelling of 30105007505 in words is "thirty billion, one hundred five million, seven thousand, five hundred five".