466221521 has 2 divisors, whose sum is σ = 466221522. Its totient is φ = 466221520.

The previous prime is 466221491. The next prime is 466221593. The reversal of 466221521 is 125122664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352500625 + 113720896 = 18775^2 + 10664^2 .

It is a cyclic number.

It is not a de Polignac number, because 466221521 - 2²⁶ = 399112657 is a prime.

It is not a weakly prime, because it can be changed into another prime (466221421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 233110760 + 233110761.

It is an arithmetic number, because the mean of its divisors is an integer number (233110761).

Almost surely, 2^466221521 is an apocalyptic number.

It is an amenable number.

466221521 is a deficient number, since it is larger than the sum of its proper divisors (1).

466221521 is an equidigital number, since it uses as much as digits as its factorization.

466221521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 466221521 is about 21592.1634163879. The cubic root of 466221521 is about 775.4088836487.

The spelling of 466221521 in words is "four hundred sixty-six million, two hundred twenty-one thousand, five hundred twenty-one".