475352643 has 4 divisors (see below), whose sum is σ = 633803528. Its totient is φ = 316901760.

The previous prime is 475352639. The next prime is 475352677. The reversal of 475352643 is 346253574.

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

It is not a de Polignac number, because 475352643 - 2² = 475352639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475357643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79225438 + ... + 79225443.

It is an arithmetic number, because the mean of its divisors is an integer number (158450882).

Almost surely, 2^475352643 is an apocalyptic number.

475352643 is a deficient number, since it is larger than the sum of its proper divisors (158450885).

475352643 is a wasteful number, since it uses less digits than its factorization.

475352643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158450884.

The product of its digits is 302400, while the sum is 39.

The square root of 475352643 is about 21802.5834019733. The cubic root of 475352643 is about 780.4384139556.

The spelling of 475352643 in words is "four hundred seventy-five million, three hundred fifty-two thousand, six hundred forty-three".