51755827 has 2 divisors, whose sum is σ = 51755828. Its totient is φ = 51755826.

The previous prime is 51755779. The next prime is 51755831. The reversal of 51755827 is 72855715.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51755827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51755827.

It is not a weakly prime, because it can be changed into another prime (51755897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25877913 + 25877914.

It is an arithmetic number, because the mean of its divisors is an integer number (25877914).

Almost surely, 2^51755827 is an apocalyptic number.

51755827 is a deficient number, since it is larger than the sum of its proper divisors (1).

51755827 is an equidigital number, since it uses as much as digits as its factorization.

51755827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98000, while the sum is 40.

The square root of 51755827 is about 7194.1522780658. The cubic root of 51755827 is about 372.6659819127.

The spelling of 51755827 in words is "fifty-one million, seven hundred fifty-five thousand, eight hundred twenty-seven".