475129885 has 8 divisors (see below), whose sum is σ = 573788376. Its totient is φ = 377682240.

The previous prime is 475129873. The next prime is 475129943. The reversal of 475129885 is 588921574.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30173049 + 444956836 = 5493^2 + 21094^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 475129885 - 2⁷ = 475129757 is a prime.

It is a super-2 number, since 2×475129885² = 451496815240226450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301846 + ... + 303415.

It is an arithmetic number, because the mean of its divisors is an integer number (71723547).

Almost surely, 2^475129885 is an apocalyptic number.

It is an amenable number.

475129885 is a deficient number, since it is larger than the sum of its proper divisors (98658491).

475129885 is a wasteful number, since it uses less digits than its factorization.

475129885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605423.

The product of its digits is 806400, while the sum is 49.

The square root of 475129885 is about 21797.4742802922. The cubic root of 475129885 is about 780.3164861855.

The spelling of 475129885 in words is "four hundred seventy-five million, one hundred twenty-nine thousand, eight hundred eighty-five".