465521521 has 2 divisors, whose sum is σ = 465521522. Its totient is φ = 465521520.

The previous prime is 465521509. The next prime is 465521533. The reversal of 465521521 is 125125564.

It is a balanced prime because it is at equal distance from previous prime (465521509) and next prime (465521533).

It can be written as a sum of positive squares in only one way, i.e., 418407025 + 47114496 = 20455^2 + 6864^2 .

It is a cyclic number.

It is not a de Polignac number, because 465521521 - 2¹¹ = 465519473 is a prime.

It is not a weakly prime, because it can be changed into another prime (465521621) 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, 232760760 + 232760761.

It is an arithmetic number, because the mean of its divisors is an integer number (232760761).

Almost surely, 2^465521521 is an apocalyptic number.

It is an amenable number.

465521521 is a deficient number, since it is larger than the sum of its proper divisors (1).

465521521 is an equidigital number, since it uses as much as digits as its factorization.

465521521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 31.

The square root of 465521521 is about 21575.9477427992. The cubic root of 465521521 is about 775.0206146442.

The spelling of 465521521 in words is "four hundred sixty-five million, five hundred twenty-one thousand, five hundred twenty-one".