465999521 has 8 divisors (see below), whose sum is σ = 519151080. Its totient is φ = 415320192.

The previous prime is 465999517. The next prime is 465999551. The reversal of 465999521 is 125999564.

It can be written as a sum of positive squares in 4 ways, for example, as 9579025 + 456420496 = 3095^2 + 21364^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 465999521 - 2² = 465999517 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 465999521.

It is not an unprimeable number, because it can be changed into a prime (465999551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617660 + ... + 618413.

It is an arithmetic number, because the mean of its divisors is an integer number (64893885).

Almost surely, 2^465999521 is an apocalyptic number.

It is an amenable number.

465999521 is a deficient number, since it is larger than the sum of its proper divisors (53151559).

465999521 is a wasteful number, since it uses less digits than its factorization.

465999521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236115.

The product of its digits is 874800, while the sum is 50.

The square root of 465999521 is about 21587.0220502968. The cubic root of 465999521 is about 775.2857890150.

The spelling of 465999521 in words is "four hundred sixty-five million, nine hundred ninety-nine thousand, five hundred twenty-one".