475521477 has 16 divisors (see below), whose sum is σ = 651647040. Its totient is φ = 308270592.

The previous prime is 475521469. The next prime is 475521479. The reversal of 475521477 is 774125574.

It is not a de Polignac number, because 475521477 - 2³ = 475521469 is a prime.

It is a super-2 number, since 2×475521477² = 452241350176523058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475521479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21493 + ... + 37589.

It is an arithmetic number, because the mean of its divisors is an integer number (40727940).

Almost surely, 2^475521477 is an apocalyptic number.

It is an amenable number.

475521477 is a deficient number, since it is larger than the sum of its proper divisors (176125563).

475521477 is a wasteful number, since it uses less digits than its factorization.

475521477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16372.

The product of its digits is 274400, while the sum is 42.

The square root of 475521477 is about 21806.4549388478. The cubic root of 475521477 is about 780.5308007652.

The spelling of 475521477 in words is "four hundred seventy-five million, five hundred twenty-one thousand, four hundred seventy-seven".