51560521 has 8 divisors (see below), whose sum is σ = 53726400. Its totient is φ = 49420560.

The previous prime is 51560519. The next prime is 51560539. The reversal of 51560521 is 12506515.

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 51560521 - 2¹ = 51560519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51560581) 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, 2365 + ... + 10426.

It is an arithmetic number, because the mean of its divisors is an integer number (6715800).

Almost surely, 2^51560521 is an apocalyptic number.

It is an amenable number.

51560521 is a deficient number, since it is larger than the sum of its proper divisors (2165879).

51560521 is a wasteful number, since it uses less digits than its factorization.

51560521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12959.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 51560521 is about 7180.5655069778. The cubic root of 51560521 is about 372.1966264059.

The spelling of 51560521 in words is "fifty-one million, five hundred sixty thousand, five hundred twenty-one".