7931235900025 has 9 divisors (see below), whose sum is σ = 9834749976781. Its totient is φ = 6344977455040.

The previous prime is 7931235900023. The next prime is 7931235900041. The reversal of 7931235900025 is 5200095321397.

The square root of 7931235900025 is 2816245.

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 3104971740649 + 4826264159376 = 1762093^2 + 2196876^2 .

It is not a de Polignac number, because 7931235900025 - 2¹ = 7931235900023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7931235900023) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13799601 + ... + 14362849.

Almost surely, 2^{7931235900025} is an apocalyptic number.

7931235900025 is the 2816245-th square number.

7931235900025 is the 1408123-rd centered octagonal number.

It is an amenable number.

7931235900025 is a deficient number, since it is larger than the sum of its proper divisors (1903514076756).

7931235900025 is an frugal number, since it uses more digits than its factorization.

7931235900025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126508 (or 563254 counting only the distinct ones).

The product of its (nonzero) digits is 510300, while the sum is 46.

The spelling of 7931235900025 in words is "seven trillion, nine hundred thirty-one billion, two hundred thirty-five million, nine hundred thousand, twenty-five".