475025447 has 4 divisors (see below), whose sum is σ = 511565880. Its totient is φ = 438485016.

The previous prime is 475025413. The next prime is 475025477. The reversal of 475025447 is 744520574.

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

It is a cyclic number.

It is not a de Polignac number, because 475025447 - 2²² = 470831143 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 475025447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475025477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18270197 + ... + 18270222.

It is an arithmetic number, because the mean of its divisors is an integer number (127891470).

Almost surely, 2^475025447 is an apocalyptic number.

475025447 is a deficient number, since it is larger than the sum of its proper divisors (36540433).

475025447 is a wasteful number, since it uses less digits than its factorization.

475025447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36540432.

The product of its (nonzero) digits is 156800, while the sum is 38.

The square root of 475025447 is about 21795.0785041027. The cubic root of 475025447 is about 780.2593083711.

The spelling of 475025447 in words is "four hundred seventy-five million, twenty-five thousand, four hundred forty-seven".