464564521 has 4 divisors (see below), whose sum is σ = 464789844. Its totient is φ = 464339200.

The previous prime is 464564519. The next prime is 464564537. The reversal of 464564521 is 125465464.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136048896 + 328515625 = 11664^2 + 18125^2 .

It is a cyclic number.

It is not a de Polignac number, because 464564521 - 2¹ = 464564519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (464564621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109540 + ... + 113701.

It is an arithmetic number, because the mean of its divisors is an integer number (116197461).

Almost surely, 2^464564521 is an apocalyptic number.

It is an amenable number.

464564521 is a deficient number, since it is larger than the sum of its proper divisors (225323).

464564521 is a wasteful number, since it uses less digits than its factorization.

464564521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225322.

The product of its digits is 115200, while the sum is 37.

The square root of 464564521 is about 21553.7588601153. The cubic root of 464564521 is about 774.4891651304.

The spelling of 464564521 in words is "four hundred sixty-four million, five hundred sixty-four thousand, five hundred twenty-one".