475551 has 24 divisors (see below), whose sum is σ = 757120. Its totient is φ = 297432.

The previous prime is 475549. The next prime is 475583. The reversal of 475551 is 155574.

It is not a de Polignac number, because 475551 - 2¹ = 475549 is a prime.

It is a super-2 number, since 2×475551² = 452297507202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

Its product of digits (3500) is a multiple of the sum of its prime divisors (125).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4566 + ... + 4668.

2⁴⁷⁵⁵⁵¹ is an apocalyptic number.

475551 is a deficient number, since it is larger than the sum of its proper divisors (281569).

475551 is a wasteful number, since it uses less digits than its factorization.

475551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 125 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 475551 is about 689.6020591617. The cubic root of 475551 is about 78.0546953652.

The spelling of 475551 in words is "four hundred seventy-five thousand, five hundred fifty-one".