51768706 has 32 divisors (see below), whose sum is σ = 90683712. Its totient is φ = 21903360.

The previous prime is 51768701. The next prime is 51768713. The reversal of 51768706 is 60786715.

51768706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51768701) 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 15 ways as a sum of consecutive naturals, for example, 35565 + ... + 36991.

It is an arithmetic number, because the mean of its divisors is an integer number (2833866).

Almost surely, 2^51768706 is an apocalyptic number.

51768706 is a deficient number, since it is larger than the sum of its proper divisors (38915006).

51768706 is a wasteful number, since it uses less digits than its factorization.

51768706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 51768706 is about 7195.0473243753. The cubic root of 51768706 is about 372.6968909420.

Subtracting 51768706 from its reverse (60786715), we obtain a square (9018009 = 3003²).

The spelling of 51768706 in words is "fifty-one million, seven hundred sixty-eight thousand, seven hundred six".