475013661 has 32 divisors (see below), whose sum is σ = 683596800. Its totient is φ = 292487040.

The previous prime is 475013653. The next prime is 475013683. The reversal of 475013661 is 166310574.

It is not a de Polignac number, because 475013661 - 2³ = 475013653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475013611) 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 31 ways as a sum of consecutive naturals, for example, 460216 + ... + 461246.

It is an arithmetic number, because the mean of its divisors is an integer number (21362400).

Almost surely, 2^475013661 is an apocalyptic number.

It is an amenable number.

475013661 is a deficient number, since it is larger than the sum of its proper divisors (208583139).

475013661 is a wasteful number, since it uses less digits than its factorization.

475013661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 475013661 is about 21794.8081202841. The cubic root of 475013661 is about 780.2528552346.

The spelling of 475013661 in words is "four hundred seventy-five million, thirteen thousand, six hundred sixty-one".