475391507 has 4 divisors (see below), whose sum is σ = 478861656. Its totient is φ = 471921360.

The previous prime is 475391489. The next prime is 475391509. The reversal of 475391507 is 705193574.

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 475391507 - 2¹⁰ = 475390483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475391509) 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, 1734869 + ... + 1735142.

It is an arithmetic number, because the mean of its divisors is an integer number (119715414).

Almost surely, 2^475391507 is an apocalyptic number.

475391507 is a deficient number, since it is larger than the sum of its proper divisors (3470149).

475391507 is a wasteful number, since it uses less digits than its factorization.

475391507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3470148.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 475391507 is about 21803.4746542839. The cubic root of 475391507 is about 780.4596824689.

The spelling of 475391507 in words is "four hundred seventy-five million, three hundred ninety-one thousand, five hundred seven".