51230423 has 16 divisors (see below), whose sum is σ = 53996544. Its totient is φ = 48564960.

The previous prime is 51230419. The next prime is 51230429. The reversal of 51230423 is 32403215.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51230423 - 2² = 51230419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51230395 and 51230404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51230429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306686 + ... + 306852.

It is an arithmetic number, because the mean of its divisors is an integer number (3374784).

Almost surely, 2^51230423 is an apocalyptic number.

51230423 is a deficient number, since it is larger than the sum of its proper divisors (2766121).

51230423 is a wasteful number, since it uses less digits than its factorization.

51230423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 51230423 is about 7157.5430840478. The cubic root of 51230423 is about 371.4006395521.

Adding to 51230423 its reverse (32403215), we get a palindrome (83633638).

The spelling of 51230423 in words is "fifty-one million, two hundred thirty thousand, four hundred twenty-three".