520656051 has 8 divisors (see below), whose sum is σ = 694334160. Its totient is φ = 347040992.

The previous prime is 520656041. The next prime is 520656109. The reversal of 520656051 is 150656025.

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

It is a cyclic number.

It is not a de Polignac number, because 520656051 - 2⁹ = 520655539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520656011) 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, 9121 + ... + 33533.

It is an arithmetic number, because the mean of its divisors is an integer number (86791770).

Almost surely, 2^520656051 is an apocalyptic number.

520656051 is a deficient number, since it is larger than the sum of its proper divisors (173678109).

520656051 is a wasteful number, since it uses less digits than its factorization.

520656051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31525.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 520656051 is about 22817.8888374889. Note that the first 4 decimals coincide. The cubic root of 520656051 is about 804.4831892327.

The spelling of 520656051 in words is "five hundred twenty million, six hundred fifty-six thousand, fifty-one".