30025117939 has 4 divisors (see below), whose sum is σ = 30029029560. Its totient is φ = 30021206320.

The previous prime is 30025117883. The next prime is 30025117949. The reversal of 30025117939 is 93971152003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30025117939 - 2¹³ = 30025109747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30025117949) 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, 1944274 + ... + 1959655.

It is an arithmetic number, because the mean of its divisors is an integer number (7507257390).

Almost surely, 2^30025117939 is an apocalyptic number.

30025117939 is a deficient number, since it is larger than the sum of its proper divisors (3911621).

30025117939 is an equidigital number, since it uses as much as digits as its factorization.

30025117939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911620.

The product of its (nonzero) digits is 51030, while the sum is 40.

The spelling of 30025117939 in words is "thirty billion, twenty-five million, one hundred seventeen thousand, nine hundred thirty-nine".