30518343025 has 9 divisors (see below), whose sum is σ = 37843828491. Its totient is φ = 24413975640.

The previous prime is 30518342983. The next prime is 30518343083. The reversal of 30518343025 is 52034381503.

The square root of 30518343025 is 174695.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10986603489 + 19531739536 = 104817^2 + 139756^2 .

It is not a de Polignac number, because 30518343025 - 2²¹ = 30516245873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 856006 + ... + 890944.

Almost surely, 2^30518343025 is an apocalyptic number.

30518343025 is the 174695-th square number.

30518343025 is the 87348-th centered octagonal number.

It is an amenable number.

30518343025 is a deficient number, since it is larger than the sum of its proper divisors (7325485466).

30518343025 is an frugal number, since it uses more digits than its factorization.

30518343025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69888 (or 34944 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 30518343025 in words is "thirty billion, five hundred eighteen million, three hundred forty-three thousand, twenty-five".