51704123 has 6 divisors (see below), whose sum is σ = 54924756. Its totient is φ = 48662432.

The previous prime is 51704099. The next prime is 51704131. The reversal of 51704123 is 32140715.

It is not a de Polignac number, because 51704123 - 2⁸ = 51703867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51704143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89165 + ... + 89742.

It is an arithmetic number, because the mean of its divisors is an integer number (9154126).

Almost surely, 2^51704123 is an apocalyptic number.

51704123 is a deficient number, since it is larger than the sum of its proper divisors (3220633).

51704123 is a wasteful number, since it uses less digits than its factorization.

51704123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178941 (or 178924 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 51704123 is about 7190.5579060320. The cubic root of 51704123 is about 372.5418429641.

Adding to 51704123 its reverse (32140715), we get a palindrome (83844838).

The spelling of 51704123 in words is "fifty-one million, seven hundred four thousand, one hundred twenty-three".