475117509 has 8 divisors (see below), whose sum is σ = 661033152. Its totient is φ = 302973440.

The previous prime is 475117459. The next prime is 475117519. The reversal of 475117509 is 905711574.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 475117509 - 2⁹ = 475116997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475117519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3442812 + ... + 3442949.

It is an arithmetic number, because the mean of its divisors is an integer number (82629144).

Almost surely, 2^475117509 is an apocalyptic number.

It is an amenable number.

475117509 is a deficient number, since it is larger than the sum of its proper divisors (185915643).

475117509 is a wasteful number, since it uses less digits than its factorization.

475117509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6885787.

The product of its (nonzero) digits is 44100, while the sum is 39.

The square root of 475117509 is about 21797.1903923419. The cubic root of 475117509 is about 780.3097109990.

The spelling of 475117509 in words is "four hundred seventy-five million, one hundred seventeen thousand, five hundred nine".