512665401 has 8 divisors (see below), whose sum is σ = 683898880. Its totient is φ = 341604432.

The previous prime is 512665367. The next prime is 512665403. The reversal of 512665401 is 104566215.

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

It is not a de Polignac number, because 512665401 - 2¹⁴ = 512649017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512665403) 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 7 ways as a sum of consecutive naturals, for example, 36025 + ... + 48198.

It is an arithmetic number, because the mean of its divisors is an integer number (85487360).

Almost surely, 2^512665401 is an apocalyptic number.

It is an amenable number.

512665401 is a deficient number, since it is larger than the sum of its proper divisors (171233479).

512665401 is a wasteful number, since it uses less digits than its factorization.

512665401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86255.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 512665401 is about 22642.1156476156. The cubic root of 512665401 is about 800.3464129967.

The spelling of 512665401 in words is "five hundred twelve million, six hundred sixty-five thousand, four hundred one".