75642940317025 has 27 divisors (see below), whose sum is σ = 94281743645913. Its totient is φ = 60203371773600.

The previous prime is 75642940317011. The next prime is 75642940317073. The reversal of 75642940317025 is 52071304924657.

The square root of 75642940317025 is 8697295.

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

75642940317025 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 16443211530529 + 59199728786496 = 4055023^2 + 7694136^2 .

It is not a de Polignac number, because 75642940317025 - 2⁹ = 75642940316513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8653804155 + ... + 8653812895.

Almost surely, 2^{75642940317025} is an apocalyptic number.

75642940317025 is the 8697295-th square number.

75642940317025 is the 4348648-th centered octagonal number.

It is an amenable number.

75642940317025 is a deficient number, since it is larger than the sum of its proper divisors (18638803328888).

75642940317025 is an frugal number, since it uses more digits than its factorization.

75642940317025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17890 (or 8945 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 55.

The spelling of 75642940317025 in words is "seventy-five trillion, six hundred forty-two billion, nine hundred forty million, three hundred seventeen thousand, twenty-five".