465725581 has 2 divisors, whose sum is σ = 465725582. Its totient is φ = 465725580.

The previous prime is 465725537. The next prime is 465725593. The reversal of 465725581 is 185527564.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443776356 + 21949225 = 21066^2 + 4685^2 .

It is a cyclic number.

It is not a de Polignac number, because 465725581 - 2¹⁷ = 465594509 is a prime.

It is a super-2 number, since 2×465725581² = 433800633595575122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (465725531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232862790 + 232862791.

It is an arithmetic number, because the mean of its divisors is an integer number (232862791).

Almost surely, 2^465725581 is an apocalyptic number.

It is an amenable number.

465725581 is a deficient number, since it is larger than the sum of its proper divisors (1).

465725581 is an equidigital number, since it uses as much as digits as its factorization.

465725581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336000, while the sum is 43.

The square root of 465725581 is about 21580.6761015497. The cubic root of 465725581 is about 775.1338407764.

The spelling of 465725581 in words is "four hundred sixty-five million, seven hundred twenty-five thousand, five hundred eighty-one".