475909547 has 4 divisors (see below), whose sum is σ = 478940976. Its totient is φ = 472878120.

The previous prime is 475909531. The next prime is 475909559. The reversal of 475909547 is 745909574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 745909574 = 2 ⋅372954787.

It is a cyclic number.

It is not a de Polignac number, because 475909547 - 2⁴ = 475909531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 475909495 and 475909504.

It is not an unprimeable number, because it can be changed into a prime (475909597) 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, 1515479 + ... + 1515792.

It is an arithmetic number, because the mean of its divisors is an integer number (119735244).

Almost surely, 2^475909547 is an apocalyptic number.

475909547 is a deficient number, since it is larger than the sum of its proper divisors (3031429).

475909547 is a wasteful number, since it uses less digits than its factorization.

475909547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031428.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The square root of 475909547 is about 21815.3511775538. The cubic root of 475909547 is about 780.7430717431.

The spelling of 475909547 in words is "four hundred seventy-five million, nine hundred nine thousand, five hundred forty-seven".