30500527997 has 4 divisors (see below), whose sum is σ = 31244443356. Its totient is φ = 29756612640.

The previous prime is 30500527991. The next prime is 30500528021. The reversal of 30500527997 is 79972500503.

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 9167296516 + 21333231481 = 95746^2 + 146059^2 .

It is not a de Polignac number, because 30500527997 - 2³⁰ = 29426786173 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 (30500527991) 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, 371957618 + ... + 371957699.

It is an arithmetic number, because the mean of its divisors is an integer number (7811110839).

Almost surely, 2^30500527997 is an apocalyptic number.

It is an amenable number.

30500527997 is a deficient number, since it is larger than the sum of its proper divisors (743915359).

30500527997 is an equidigital number, since it uses as much as digits as its factorization.

30500527997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743915358.

The product of its (nonzero) digits is 595350, while the sum is 47.

The spelling of 30500527997 in words is "thirty billion, five hundred million, five hundred twenty-seven thousand, nine hundred ninety-seven".