475503901 has 2 divisors, whose sum is σ = 475503902. Its totient is φ = 475503900.

The previous prime is 475503883. The next prime is 475503907. The reversal of 475503901 is 109305574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 449228025 + 26275876 = 21195^2 + 5126^2 .

It is a cyclic number.

It is not a de Polignac number, because 475503901 - 2⁵ = 475503869 is a prime.

It is a super-2 number, since 2×475503901² = 452207919732435602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475503907) 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, 237751950 + 237751951.

It is an arithmetic number, because the mean of its divisors is an integer number (237751951).

Almost surely, 2^475503901 is an apocalyptic number.

It is an amenable number.

475503901 is a deficient number, since it is larger than the sum of its proper divisors (1).

475503901 is an equidigital number, since it uses as much as digits as its factorization.

475503901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 475503901 is about 21806.0519351853. The cubic root of 475503901 is about 780.5211841100.

The spelling of 475503901 in words is "four hundred seventy-five million, five hundred three thousand, nine hundred one".