30907398025 has 27 divisors (see below), whose sum is σ = 44591222151. Its totient is φ = 21189425040.

The previous prime is 30907398013. The next prime is 30907398037. The reversal of 30907398025 is 52089370903.

The square root of 30907398025 is 175805.

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

It is an interprime number because it is at equal distance from previous prime (30907398013) and next prime (30907398037).

It can be written as a sum of positive squares in only one way, i.e., 11126663289 + 19780734736 = 105483^2 + 140644^2 .

It is not a de Polignac number, because 30907398025 - 2³¹ = 28759914377 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6150664 + ... + 6155686.

Almost surely, 2^30907398025 is an apocalyptic number.

30907398025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30907398025 is the 175805-th square number.

30907398025 is the 87903-rd centered octagonal number.

It is an amenable number.

30907398025 is a deficient number, since it is larger than the sum of its proper divisors (13683824126).

30907398025 is an frugal number, since it uses more digits than its factorization.

30907398025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10070 (or 5035 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 30907398025 in words is "thirty billion, nine hundred seven million, three hundred ninety-eight thousand, twenty-five".