30507928225 has 48 divisors (see below), whose sum is σ = 39832740720. Its totient is φ = 23146905600.

The previous prime is 30507928181. The next prime is 30507928247. The reversal of 30507928225 is 52282970503.

It can be written as a sum of positive squares in 24 ways, for example, as 24739829521 + 5768098704 = 157289^2 + 75948^2 .

It is not a de Polignac number, because 30507928225 - 2¹³ = 30507920033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14659185 + ... + 14661265.

It is an arithmetic number, because the mean of its divisors is an integer number (829848765).

Almost surely, 2^30507928225 is an apocalyptic number.

It is an amenable number.

30507928225 is a deficient number, since it is larger than the sum of its proper divisors (9324812495).

30507928225 is a wasteful number, since it uses less digits than its factorization.

30507928225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470 (or 2465 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 30507928225 in words is "thirty billion, five hundred seven million, nine hundred twenty-eight thousand, two hundred twenty-five".