395225047 has 4 divisors (see below), whose sum is σ = 451685776. Its totient is φ = 338764320.

The previous prime is 395225029. The next prime is 395225053. The reversal of 395225047 is 740522593.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395225047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 395224997 and 395225015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395225057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28230354 + ... + 28230367.

It is an arithmetic number, because the mean of its divisors is an integer number (112921444).

Almost surely, 2^395225047 is an apocalyptic number.

395225047 is a deficient number, since it is larger than the sum of its proper divisors (56460729).

395225047 is an equidigital number, since it uses as much as digits as its factorization.

395225047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56460728.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 395225047 is about 19880.2677798867. The cubic root of 395225047 is about 733.8627093389.

The spelling of 395225047 in words is "three hundred ninety-five million, two hundred twenty-five thousand, forty-seven".