51006023 has 2 divisors, whose sum is σ = 51006024. Its totient is φ = 51006022.

The previous prime is 51005993. The next prime is 51006047. The reversal of 51006023 is 32060015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51006023 - 2²⁰ = 49957447 is a prime.

It is a super-2 number, since 2×51006023² = 5203228764553058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51005992 and 51006010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51006323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25503011 + 25503012.

It is an arithmetic number, because the mean of its divisors is an integer number (25503012).

Almost surely, 2^51006023 is an apocalyptic number.

51006023 is a deficient number, since it is larger than the sum of its proper divisors (1).

51006023 is an equidigital number, since it uses as much as digits as its factorization.

51006023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 51006023 is about 7141.8501104406. The cubic root of 51006023 is about 370.8575749614.

Adding to 51006023 its reverse (32060015), we get a palindrome (83066038).

The spelling of 51006023 in words is "fifty-one million, six thousand, twenty-three".