475631249 has 2 divisors, whose sum is σ = 475631250. Its totient is φ = 475631248.

The previous prime is 475631203. The next prime is 475631311. The reversal of 475631249 is 942136574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 381928849 + 93702400 = 19543^2 + 9680^2 .

It is a cyclic number.

It is not a de Polignac number, because 475631249 - 2⁸ = 475630993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (475639249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237815624 + 237815625.

It is an arithmetic number, because the mean of its divisors is an integer number (237815625).

Almost surely, 2^475631249 is an apocalyptic number.

It is an amenable number.

475631249 is a deficient number, since it is larger than the sum of its proper divisors (1).

475631249 is an equidigital number, since it uses as much as digits as its factorization.

475631249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 475631249 is about 21808.9717547618. The cubic root of 475631249 is about 780.5908568223.

The spelling of 475631249 in words is "four hundred seventy-five million, six hundred thirty-one thousand, two hundred forty-nine".