464022521 has 2 divisors, whose sum is σ = 464022522. Its totient is φ = 464022520.

The previous prime is 464022511. The next prime is 464022523. The reversal of 464022521 is 125220464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376786921 + 87235600 = 19411^2 + 9340^2 .

It is a cyclic number.

It is not a de Polignac number, because 464022521 - 2¹⁰ = 464021497 is a prime.

Together with 464022523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (464022523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232011260 + 232011261.

It is an arithmetic number, because the mean of its divisors is an integer number (232011261).

Almost surely, 2^464022521 is an apocalyptic number.

It is an amenable number.

464022521 is a deficient number, since it is larger than the sum of its proper divisors (1).

464022521 is an equidigital number, since it uses as much as digits as its factorization.

464022521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 464022521 is about 21541.1819777839. The cubic root of 464022521 is about 774.1878532121.

Adding to 464022521 its reverse (125220464), we get a palindrome (589242985).

The spelling of 464022521 in words is "four hundred sixty-four million, twenty-two thousand, five hundred twenty-one".