51988723 has 2 divisors, whose sum is σ = 51988724. Its totient is φ = 51988722.

The previous prime is 51988681. The next prime is 51988747. The reversal of 51988723 is 32788915.

51988723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51988723 - 2¹³ = 51980531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51988723.

It is not a weakly prime, because it can be changed into another prime (51988753) 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 as a sum of consecutive naturals, namely, 25994361 + 25994362.

It is an arithmetic number, because the mean of its divisors is an integer number (25994362).

Almost surely, 2^51988723 is an apocalyptic number.

51988723 is a deficient number, since it is larger than the sum of its proper divisors (1).

51988723 is an equidigital number, since it uses as much as digits as its factorization.

51988723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 51988723 is about 7210.3205892665. The cubic root of 51988723 is about 373.2241319821.

The spelling of 51988723 in words is "fifty-one million, nine hundred eighty-eight thousand, seven hundred twenty-three".