506990571 has 4 divisors (see below), whose sum is σ = 675987432. Its totient is φ = 337993712.

The previous prime is 506990569. The next prime is 506990651. The reversal of 506990571 is 175099605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 506990571 - 2¹ = 506990569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (506990521) 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 3 ways as a sum of consecutive naturals, for example, 84498426 + ... + 84498431.

It is an arithmetic number, because the mean of its divisors is an integer number (168996858).

Almost surely, 2^506990571 is an apocalyptic number.

506990571 is a deficient number, since it is larger than the sum of its proper divisors (168996861).

506990571 is a wasteful number, since it uses less digits than its factorization.

506990571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168996860.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 506990571 is about 22516.4511191262. The cubic root of 506990571 is about 797.3823667326.

The spelling of 506990571 in words is "five hundred six million, nine hundred ninety thousand, five hundred seventy-one".