395811025 has 27 divisors (see below), whose sum is σ = 516055729. Its totient is φ = 301130720.

The previous prime is 395811023. The next prime is 395811029. The reversal of 395811025 is 520118593.

The square root of 395811025 is 19895.

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 43573201 + 352237824 = 6601^2 + 18768^2 .

It is not a de Polignac number, because 395811025 - 2¹ = 395811023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395811023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2287839 + ... + 2288011.

Almost surely, 2^395811025 is an apocalyptic number.

395811025 is the 19895-th square number.

395811025 is the 9948-th centered octagonal number.

It is an amenable number.

395811025 is a deficient number, since it is larger than the sum of its proper divisors (120244704).

395811025 is an equidigital number, since it uses as much as digits as its factorization.

395811025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 34.

The cubic root of 395811025 is about 734.2252159285.

The spelling of 395811025 in words is "three hundred ninety-five million, eight hundred eleven thousand, twenty-five".