51392723 has 2 divisors, whose sum is σ = 51392724. Its totient is φ = 51392722.

The previous prime is 51392707. The next prime is 51392729. The reversal of 51392723 is 32729315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51392723 - 2⁴ = 51392707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51392723.

It is not a weakly prime, because it can be changed into another prime (51392729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25696361 + 25696362.

It is an arithmetic number, because the mean of its divisors is an integer number (25696362).

Almost surely, 2^51392723 is an apocalyptic number.

51392723 is a deficient number, since it is larger than the sum of its proper divisors (1).

51392723 is an equidigital number, since it uses as much as digits as its factorization.

51392723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 32.

The square root of 51392723 is about 7168.8718080323. The cubic root of 51392723 is about 371.7924300636.

The spelling of 51392723 in words is "fifty-one million, three hundred ninety-two thousand, seven hundred twenty-three".