51768755 has 8 divisors (see below), whose sum is σ = 62250000. Its totient is φ = 41330016.

The previous prime is 51768751. The next prime is 51768767. The reversal of 51768755 is 55786715.

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 51768755 - 2² = 51768751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51768751) 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, 7880 + ... + 12869.

It is an arithmetic number, because the mean of its divisors is an integer number (7781250).

Almost surely, 2^51768755 is an apocalyptic number.

51768755 is a deficient number, since it is larger than the sum of its proper divisors (10481245).

51768755 is a wasteful number, since it uses less digits than its factorization.

51768755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21253.

The product of its digits is 294000, while the sum is 44.

The square root of 51768755 is about 7195.0507294945. The cubic root of 51768755 is about 372.6970085300.

It can be divided in two parts, 5176 and 8755, that added together give a palindrome (13931).

The spelling of 51768755 in words is "fifty-one million, seven hundred sixty-eight thousand, seven hundred fifty-five".