51560687 has 8 divisors (see below), whose sum is σ = 53879904. Its totient is φ = 49247968.

The previous prime is 51560659. The next prime is 51560689. The reversal of 51560687 is 78606515.

It is a happy number.

51560687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51560687 - 2¹⁰ = 51559663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51560687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51560689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22193 + ... + 24405.

It is an arithmetic number, because the mean of its divisors is an integer number (6734988).

Almost surely, 2^51560687 is an apocalyptic number.

51560687 is a deficient number, since it is larger than the sum of its proper divisors (2319217).

51560687 is a wasteful number, since it uses less digits than its factorization.

51560687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 51560687 is about 7180.5770659467. The cubic root of 51560687 is about 372.1970258367.

The spelling of 51560687 in words is "fifty-one million, five hundred sixty thousand, six hundred eighty-seven".