506521079 has 4 divisors (see below), whose sum is σ = 509319720. Its totient is φ = 503722440.

The previous prime is 506521073. The next prime is 506521087. The reversal of 506521079 is 970125605.

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 506521079 - 2⁸ = 506520823 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 (506521073) 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, 1399049 + ... + 1399410.

It is an arithmetic number, because the mean of its divisors is an integer number (127329930).

Almost surely, 2^506521079 is an apocalyptic number.

506521079 is a deficient number, since it is larger than the sum of its proper divisors (2798641).

506521079 is a wasteful number, since it uses less digits than its factorization.

506521079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798640.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 506521079 is about 22506.0231715868. The cubic root of 506521079 is about 797.1361555395.

The spelling of 506521079 in words is "five hundred six million, five hundred twenty-one thousand, seventy-nine".