475661357 has 4 divisors (see below), whose sum is σ = 482177340. Its totient is φ = 469145376.

The previous prime is 475661317. The next prime is 475661359. The reversal of 475661357 is 753166574.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 338044996 + 137616361 = 18386^2 + 11731^2 .

It is a cyclic number.

It is not a de Polignac number, because 475661357 - 2⁶ = 475661293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475661359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3257882 + ... + 3258027.

It is an arithmetic number, because the mean of its divisors is an integer number (120544335).

Almost surely, 2^475661357 is an apocalyptic number.

It is an amenable number.

475661357 is a deficient number, since it is larger than the sum of its proper divisors (6515983).

475661357 is an equidigital number, since it uses as much as digits as its factorization.

475661357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6515982.

The product of its digits is 529200, while the sum is 44.

The square root of 475661357 is about 21809.6620102192. The cubic root of 475661357 is about 780.6073272384.

The spelling of 475661357 in words is "four hundred seventy-five million, six hundred sixty-one thousand, three hundred fifty-seven".