475630549 has 2 divisors, whose sum is σ = 475630550. Its totient is φ = 475630548.

The previous prime is 475630543. The next prime is 475630567. The reversal of 475630549 is 945036574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 469025649 + 6604900 = 21657^2 + 2570^2 .

It is a cyclic number.

It is not a de Polignac number, because 475630549 - 2²⁷ = 341412821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475630543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237815274 + 237815275.

It is an arithmetic number, because the mean of its divisors is an integer number (237815275).

Almost surely, 2^475630549 is an apocalyptic number.

It is an amenable number.

475630549 is a deficient number, since it is larger than the sum of its proper divisors (1).

475630549 is an equidigital number, since it uses as much as digits as its factorization.

475630549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 475630549 is about 21808.9557063148. The cubic root of 475630549 is about 780.5904738829.

The spelling of 475630549 in words is "four hundred seventy-five million, six hundred thirty thousand, five hundred forty-nine".