512521461 has 6 divisors (see below), whose sum is σ = 740308790. Its totient is φ = 341680968.

The previous prime is 512521459. The next prime is 512521463. The reversal of 512521461 is 164125215.

512521461 is a `hidden beast` number, since 512 + 5 + 2 + 146 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (512521459) and next prime (512521463).

It can be written as a sum of positive squares in only one way, i.e., 451775025 + 60746436 = 21255^2 + 7794^2 .

It is not a de Polignac number, because 512521461 - 2¹ = 512521459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512521463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28473406 + ... + 28473423.

Almost surely, 2^512521461 is an apocalyptic number.

It is an amenable number.

512521461 is a deficient number, since it is larger than the sum of its proper divisors (227787329).

512521461 is a wasteful number, since it uses less digits than its factorization.

512521461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56946835 (or 56946832 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 512521461 is about 22638.9368345777. The cubic root of 512521461 is about 800.2715021187.

Adding to 512521461 its reverse (164125215), we get a palindrome (676646676).

The spelling of 512521461 in words is "five hundred twelve million, five hundred twenty-one thousand, four hundred sixty-one".