520949949 has 8 divisors (see below), whose sum is σ = 748030752. Its totient is φ = 320584560.

The previous prime is 520949929. The next prime is 520949959. The reversal of 520949949 is 949949025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520949949 - 2⁵ = 520949917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520949909) 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, 6678807 + ... + 6678884.

It is an arithmetic number, because the mean of its divisors is an integer number (93503844).

Almost surely, 2^520949949 is an apocalyptic number.

It is an amenable number.

520949949 is a deficient number, since it is larger than the sum of its proper divisors (227080803).

520949949 is a wasteful number, since it uses less digits than its factorization.

520949949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357707.

The product of its (nonzero) digits is 1049760, while the sum is 51.

The square root of 520949949 is about 22824.3280076326. The cubic root of 520949949 is about 804.6345313240.

The spelling of 520949949 in words is "five hundred twenty million, nine hundred forty-nine thousand, nine hundred forty-nine".