475489081 has 2 divisors, whose sum is σ = 475489082. Its totient is φ = 475489080.

The previous prime is 475489057. The next prime is 475489127. The reversal of 475489081 is 180984574.

It is an a-pointer prime, because the next prime (475489127) can be obtained adding 475489081 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 469805625 + 5683456 = 21675^2 + 2384^2 .

It is a cyclic number.

It is not a de Polignac number, because 475489081 - 2⁷ = 475488953 is a prime.

It is a super-2 number, since 2×475489081² = 452179732300449122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (475489381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237744540 + 237744541.

It is an arithmetic number, because the mean of its divisors is an integer number (237744541).

Almost surely, 2^475489081 is an apocalyptic number.

It is an amenable number.

475489081 is a deficient number, since it is larger than the sum of its proper divisors (1).

475489081 is an equidigital number, since it uses as much as digits as its factorization.

475489081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 475489081 is about 21805.7121186170. The cubic root of 475489081 is about 780.5130752076.

The spelling of 475489081 in words is "four hundred seventy-five million, four hundred eighty-nine thousand, eighty-one".