51766563 has 8 divisors (see below), whose sum is σ = 69967888. Its totient is φ = 34038144.

The previous prime is 51766549. The next prime is 51766571. The reversal of 51766563 is 36566715.

51766563 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 a de Polignac number, because none of the positive numbers 2^k-51766563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51766523) 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, 117970 + ... + 118407.

It is an arithmetic number, because the mean of its divisors is an integer number (8745986).

Almost surely, 2^51766563 is an apocalyptic number.

51766563 is a deficient number, since it is larger than the sum of its proper divisors (18201325).

51766563 is a wasteful number, since it uses less digits than its factorization.

51766563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236453.

The product of its digits is 113400, while the sum is 39.

The square root of 51766563 is about 7194.8984009505. The cubic root of 51766563 is about 372.6917481925.

The spelling of 51766563 in words is "fifty-one million, seven hundred sixty-six thousand, five hundred sixty-three".