6931395025 has 9 divisors (see below), whose sum is σ = 8595446043. Its totient is φ = 5544783000.

The previous prime is 6931395011. The next prime is 6931395061. The reversal of 6931395025 is 5205931396.

The square root of 6931395025 is 83255.

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

6931395025 is digitally balanced in base 3, 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 only one way, i.e., 2495302209 + 4436092816 = 49953^2 + 66604^2 .

It is not a de Polignac number, because 6931395025 - 2¹¹ = 6931392977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 407950 + ... + 424600.

Almost surely, 2^6931395025 is an apocalyptic number.

6931395025 is the 83255-th square number.

6931395025 is the 41628-th centered octagonal number.

It is an amenable number.

6931395025 is a deficient number, since it is larger than the sum of its proper divisors (1664051018).

6931395025 is an frugal number, since it uses more digits than its factorization.

6931395025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33312 (or 16656 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 43.

The cubic root of 6931395025 is about 1906.6612931036.

It can be divided in two parts, 6931 and 395025, that added together give a square (401956 = 634²).

The spelling of 6931395025 in words is "six billion, nine hundred thirty-one million, three hundred ninety-five thousand, twenty-five".