465225581 has 2 divisors, whose sum is σ = 465225582. Its totient is φ = 465225580.

The previous prime is 465225533. The next prime is 465225601. The reversal of 465225581 is 185522564.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 465092356 + 133225 = 21566^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 465225581 - 2¹⁴ = 465209197 is a prime.

It is a super-2 number, since 2×465225581² = 432869682433575122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (465425581) 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, 232612790 + 232612791.

It is an arithmetic number, because the mean of its divisors is an integer number (232612791).

Almost surely, 2^465225581 is an apocalyptic number.

It is an amenable number.

465225581 is a deficient number, since it is larger than the sum of its proper divisors (1).

465225581 is an equidigital number, since it uses as much as digits as its factorization.

465225581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96000, while the sum is 38.

The square root of 465225581 is about 21569.0885528341. The cubic root of 465225581 is about 774.8563485396.

The spelling of 465225581 in words is "four hundred sixty-five million, two hundred twenty-five thousand, five hundred eighty-one".