387500025025 has 27 divisors (see below), whose sum is σ = 502392466569. Its totient is φ = 296466978720.

The previous prime is 387500025019. The next prime is 387500025109. The reversal of 387500025025 is 520520005783.

The square root of 387500025025 is 622495.

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

It can be written as a sum of positive squares in 4 ways, for example, as 70900245441 + 316599779584 = 266271^2 + 562672^2 .

It is not a de Polignac number, because 387500025025 - 2⁷ = 387500024897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 71584219 + ... + 71589631.

Almost surely, 2^387500025025 is an apocalyptic number.

387500025025 is the 622495-th square number.

387500025025 is the 311248-th centered octagonal number.

It is an amenable number.

387500025025 is a deficient number, since it is larger than the sum of its proper divisors (114892441544).

387500025025 is an frugal number, since it uses more digits than its factorization.

387500025025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10882 (or 5441 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 387500025025 in words is "three hundred eighty-seven billion, five hundred million, twenty-five thousand, twenty-five".