30508981525 has 12 divisors (see below), whose sum is σ = 41270331744. Its totient is φ = 22188350000.

The previous prime is 30508981487. The next prime is 30508981561. The reversal of 30508981525 is 52518980503.

It is not a de Polignac number, because 30508981525 - 2¹¹ = 30508979477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55470601 + ... + 55471150.

It is an arithmetic number, because the mean of its divisors is an integer number (3439194312).

Almost surely, 2^30508981525 is an apocalyptic number.

It is an amenable number.

30508981525 is a deficient number, since it is larger than the sum of its proper divisors (10761350219).

30508981525 is a wasteful number, since it uses less digits than its factorization.

30508981525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110941772 (or 110941767 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 46.

The spelling of 30508981525 in words is "thirty billion, five hundred eight million, nine hundred eighty-one thousand, five hundred twenty-five".