51768127 has 4 divisors (see below), whose sum is σ = 51934896. Its totient is φ = 51601360.

The previous prime is 51768107. The next prime is 51768139. The reversal of 51768127 is 72186715.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72186715 = 5 ⋅14437343.

It is a cyclic number.

It is not a de Polignac number, because 51768127 - 2¹¹ = 51766079 is a prime.

It is a super-3 number, since 3×51768127³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51768107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82918 + ... + 83539.

It is an arithmetic number, because the mean of its divisors is an integer number (12983724).

Almost surely, 2^51768127 is an apocalyptic number.

51768127 is a deficient number, since it is larger than the sum of its proper divisors (166769).

51768127 is a wasteful number, since it uses less digits than its factorization.

51768127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166768.

The product of its digits is 23520, while the sum is 37.

The square root of 51768127 is about 7195.0070882522. The cubic root of 51768127 is about 372.6955014777.

It can be divided in two parts, 517 and 68127, that added together give a square (68644 = 262²).

The spelling of 51768127 in words is "fifty-one million, seven hundred sixty-eight thousand, one hundred twenty-seven".