30375512725 has 18 divisors (see below), whose sum is σ = 38291685026. Its totient is φ = 23896687200.

The previous prime is 30375512707. The next prime is 30375512747. The reversal of 30375512725 is 52721557303.

It can be written as a sum of positive squares in 3 ways, for example, as 79673476 + 30295839249 = 8926^2 + 174057^2 .

It is not a de Polignac number, because 30375512725 - 2¹⁹ = 30374988437 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 17 ways as a sum of consecutive naturals, for example, 6803844 + ... + 6808306.

Almost surely, 2^30375512725 is an apocalyptic number.

It is an amenable number.

30375512725 is a deficient number, since it is larger than the sum of its proper divisors (7916172301).

30375512725 is an frugal number, since it uses more digits than its factorization.

30375512725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8997 (or 4529 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 40.

The spelling of 30375512725 in words is "thirty billion, three hundred seventy-five million, five hundred twelve thousand, seven hundred twenty-five".