512055521 has 8 divisors (see below), whose sum is σ = 543011040. Its totient is φ = 481192768.

The previous prime is 512055503. The next prime is 512055563. The reversal of 512055521 is 125550215.

512055521 is nontrivially palindromic in base 16.

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 512055521 - 2¹⁴ = 512039137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512055571) 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, 11651 + ... + 34056.

It is an arithmetic number, because the mean of its divisors is an integer number (67876380).

Almost surely, 2^512055521 is an apocalyptic number.

It is an amenable number.

512055521 is a deficient number, since it is larger than the sum of its proper divisors (30955519).

512055521 is a wasteful number, since it uses less digits than its factorization.

512055521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46383.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 512055521 is about 22628.6438170740. The cubic root of 512055521 is about 800.0289161423.

The spelling of 512055521 in words is "five hundred twelve million, fifty-five thousand, five hundred twenty-one".