395409723025 has 6 divisors (see below), whose sum is σ = 490308056582. Its totient is φ = 316327778400.

The previous prime is 395409723017. The next prime is 395409723029. The reversal of 395409723025 is 520327904593.

It can be written as a sum of positive squares in 3 ways, for example, as 100238092816 + 295171630209 = 316604^2 + 543297^2 .

It is not a de Polignac number, because 395409723025 - 2³ = 395409723017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 395409723025.

It is not an unprimeable number, because it can be changed into a prime (395409723029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7908194436 + ... + 7908194485.

Almost surely, 2^395409723025 is an apocalyptic number.

It is an amenable number.

395409723025 is a deficient number, since it is larger than the sum of its proper divisors (94898333557).

395409723025 is a wasteful number, since it uses less digits than its factorization.

395409723025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15816388931 (or 15816388926 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 395409723025 in words is "three hundred ninety-five billion, four hundred nine million, seven hundred twenty-three thousand, twenty-five".