475552161 has 32 divisors (see below), whose sum is σ = 806297600. Its totient is φ = 271362960.

The previous prime is 475552151. The next prime is 475552177. The reversal of 475552161 is 161255574.

475552161 is a `hidden beast` number, since 4 + 75 + 5 + 521 + 61 = 666.

It is not a de Polignac number, because 475552161 - 2⁹ = 475551649 is a prime.

It is a super-2 number, since 2×475552161² = 452299715663539842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475552141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186030 + ... + 188568.

It is an arithmetic number, because the mean of its divisors is an integer number (25196800).

Almost surely, 2^475552161 is an apocalyptic number.

It is an amenable number.

475552161 is a deficient number, since it is larger than the sum of its proper divisors (330745439).

475552161 is a wasteful number, since it uses less digits than its factorization.

475552161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3546 (or 3540 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 475552161 is about 21807.1584806458. The cubic root of 475552161 is about 780.5475888552.

The spelling of 475552161 in words is "four hundred seventy-five million, five hundred fifty-two thousand, one hundred sixty-one".