51110023 has 2 divisors, whose sum is σ = 51110024. Its totient is φ = 51110022.

The previous prime is 51110011. The next prime is 51110029. The reversal of 51110023 is 32001115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51110023 - 2⁹ = 51109511 is a prime.

It is a super-2 number, since 2×51110023² = 5224468902121058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51109985 and 51110012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51110029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25555011 + 25555012.

It is an arithmetic number, because the mean of its divisors is an integer number (25555012).

Almost surely, 2^51110023 is an apocalyptic number.

51110023 is a deficient number, since it is larger than the sum of its proper divisors (1).

51110023 is an equidigital number, since it uses as much as digits as its factorization.

51110023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 51110023 is about 7149.1274292741. The cubic root of 51110023 is about 371.1094602704.

Adding to 51110023 its reverse (32001115), we get a palindrome (83111138).

The spelling of 51110023 in words is "fifty-one million, one hundred ten thousand, twenty-three".