465530521 has 4 divisors (see below), whose sum is σ = 468928692. Its totient is φ = 462132352.

The previous prime is 465530509. The next prime is 465530561. The reversal of 465530521 is 125035564.

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 324396121 + 141134400 = 18011^2 + 11880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-465530521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (465530501) 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, 1698880 + ... + 1699153.

It is an arithmetic number, because the mean of its divisors is an integer number (117232173).

Almost surely, 2^465530521 is an apocalyptic number.

It is an amenable number.

465530521 is a deficient number, since it is larger than the sum of its proper divisors (3398171).

465530521 is a wasteful number, since it uses less digits than its factorization.

465530521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398170.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 465530521 is about 21576.1563073686. The cubic root of 465530521 is about 775.0256091434.

The spelling of 465530521 in words is "four hundred sixty-five million, five hundred thirty thousand, five hundred twenty-one".