475509547 has 2 divisors, whose sum is σ = 475509548. Its totient is φ = 475509546.

The previous prime is 475509493. The next prime is 475509553. The reversal of 475509547 is 745905574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 475509547 - 2¹¹ = 475507499 is a prime.

It is a super-2 number, since 2×475509547² = 452218658576290418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 475509497 and 475509506.

It is not a weakly prime, because it can be changed into another prime (475509847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237754773 + 237754774.

It is an arithmetic number, because the mean of its divisors is an integer number (237754774).

Almost surely, 2^475509547 is an apocalyptic number.

475509547 is a deficient number, since it is larger than the sum of its proper divisors (1).

475509547 is an equidigital number, since it uses as much as digits as its factorization.

475509547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882000, while the sum is 46.

The square root of 475509547 is about 21806.1813942744. The cubic root of 475509547 is about 780.5242733276.

The spelling of 475509547 in words is "four hundred seventy-five million, five hundred nine thousand, five hundred forty-seven".