475205881 has 2 divisors, whose sum is σ = 475205882. Its totient is φ = 475205880.

The previous prime is 475205807. The next prime is 475205891. The reversal of 475205881 is 188502574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277522281 + 197683600 = 16659^2 + 14060^2 .

It is a cyclic number.

It is not a de Polignac number, because 475205881 - 2¹⁵ = 475173113 is a prime.

It is a super-3 number, since 3×475205881³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (475205891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237602940 + 237602941.

It is an arithmetic number, because the mean of its divisors is an integer number (237602941).

Almost surely, 2^475205881 is an apocalyptic number.

It is an amenable number.

475205881 is a deficient number, since it is larger than the sum of its proper divisors (1).

475205881 is an equidigital number, since it uses as much as digits as its factorization.

475205881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 475205881 is about 21799.2174400826. The cubic root of 475205881 is about 780.3580872803.

The spelling of 475205881 in words is "four hundred seventy-five million, two hundred five thousand, eight hundred eighty-one".