30520075097 has 4 divisors (see below), whose sum is σ = 30554718516. Its totient is φ = 30485431680.

The previous prime is 30520075063. The next prime is 30520075109. The reversal of 30520075097 is 79057002503.

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 2701504576 + 27818570521 = 51976^2 + 166789^2 .

It is a cyclic number.

It is not a de Polignac number, because 30520075097 - 2¹⁰ = 30520074073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30520075097.

It is not an unprimeable number, because it can be changed into a prime (30520075037) 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, 17320388 + ... + 17322149.

It is an arithmetic number, because the mean of its divisors is an integer number (7638679629).

Almost surely, 2^30520075097 is an apocalyptic number.

It is an amenable number.

30520075097 is a deficient number, since it is larger than the sum of its proper divisors (34643419).

30520075097 is an equidigital number, since it uses as much as digits as its factorization.

30520075097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34643418.

The product of its (nonzero) digits is 66150, while the sum is 38.

The spelling of 30520075097 in words is "thirty billion, five hundred twenty million, seventy-five thousand, ninety-seven".