520930049 has 4 divisors (see below), whose sum is σ = 548347440. Its totient is φ = 493512660.

The previous prime is 520930043. The next prime is 520930063. The reversal of 520930049 is 940039025.

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 a de Polignac number, because none of the positive numbers 2^k-520930049 is a prime.

It is a super-2 number, since 2×520930049² = 542736231902284802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520929997 and 520930024.

It is not an unprimeable number, because it can be changed into a prime (520930043) 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, 13708667 + ... + 13708704.

It is an arithmetic number, because the mean of its divisors is an integer number (137086860).

Almost surely, 2^520930049 is an apocalyptic number.

It is an amenable number.

520930049 is a deficient number, since it is larger than the sum of its proper divisors (27417391).

520930049 is a wasteful number, since it uses less digits than its factorization.

520930049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27417390.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 520930049 is about 22823.8920651146. The cubic root of 520930049 is about 804.6242856621.

The spelling of 520930049 in words is "five hundred twenty million, nine hundred thirty thousand, forty-nine".