395864981225 has 48 divisors (see below), whose sum is σ = 574498848768. Its totient is φ = 264948805440.

The previous prime is 395864981221. The next prime is 395864981243. The reversal of 395864981225 is 522189468593.

It is not a de Polignac number, because 395864981225 - 2² = 395864981221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395864981221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2953004 + ... + 3084146.

It is an arithmetic number, because the mean of its divisors is an integer number (11968726016).

Almost surely, 2^395864981225 is an apocalyptic number.

395864981225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

395864981225 is a deficient number, since it is larger than the sum of its proper divisors (178633867543).

395864981225 is a wasteful number, since it uses less digits than its factorization.

395864981225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131574 (or 131569 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 62.

The spelling of 395864981225 in words is "three hundred ninety-five billion, eight hundred sixty-four million, nine hundred eighty-one thousand, two hundred twenty-five".