450475261 has 2 divisors, whose sum is σ = 450475262. Its totient is φ = 450475260.

The previous prime is 450475253. The next prime is 450475283. The reversal of 450475261 is 162574054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318087225 + 132388036 = 17835^2 + 11506^2 .

It is a cyclic number.

It is not a de Polignac number, because 450475261 - 2³ = 450475253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450475211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225237630 + 225237631.

It is an arithmetic number, because the mean of its divisors is an integer number (225237631).

Almost surely, 2^450475261 is an apocalyptic number.

It is an amenable number.

450475261 is a deficient number, since it is larger than the sum of its proper divisors (1).

450475261 is an equidigital number, since it uses as much as digits as its factorization.

450475261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 450475261 is about 21224.4024886450. The cubic root of 450475261 is about 766.5791130221.

The spelling of 450475261 in words is "four hundred fifty million, four hundred seventy-five thousand, two hundred sixty-one".