51422423 has 8 divisors (see below), whose sum is σ = 57288000. Its totient is φ = 45829728.

The previous prime is 51422419. The next prime is 51422431. The reversal of 51422423 is 32422415.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51422423 - 2² = 51422419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51428423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67823 + ... + 68576.

It is an arithmetic number, because the mean of its divisors is an integer number (7161000).

Almost surely, 2^51422423 is an apocalyptic number.

51422423 is a deficient number, since it is larger than the sum of its proper divisors (5865577).

51422423 is a wasteful number, since it uses less digits than its factorization.

51422423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136441.

The product of its digits is 1920, while the sum is 23.

The square root of 51422423 is about 7170.9429644922. The cubic root of 51422423 is about 371.8640362373.

Adding to 51422423 its reverse (32422415), we get a palindrome (83844838).

The spelling of 51422423 in words is "fifty-one million, four hundred twenty-two thousand, four hundred twenty-three".