506562621 has 4 divisors (see below), whose sum is σ = 675416832. Its totient is φ = 337708412.

The previous prime is 506562619. The next prime is 506562689. The reversal of 506562621 is 126265605.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 506562621 - 2¹ = 506562619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506562521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84427101 + ... + 84427106.

It is an arithmetic number, because the mean of its divisors is an integer number (168854208).

Almost surely, 2^506562621 is an apocalyptic number.

It is an amenable number.

506562621 is a deficient number, since it is larger than the sum of its proper divisors (168854211).

506562621 is a wasteful number, since it uses less digits than its factorization.

506562621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168854210.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 506562621 is about 22506.9460611608. The cubic root of 506562621 is about 797.1579471466.

The spelling of 506562621 in words is "five hundred six million, five hundred sixty-two thousand, six hundred twenty-one".