51033423 has 8 divisors (see below), whose sum is σ = 77765248. Its totient is φ = 29161944.

The previous prime is 51033413. The next prime is 51033427. The reversal of 51033423 is 32433015.

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

It is not a de Polignac number, because 51033423 - 2⁵ = 51033391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2430163 = 51033423 / (5 + 1 + 0 + 3 + 3 + 4 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51033423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51033427) 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, 1215061 + ... + 1215102.

It is an arithmetic number, because the mean of its divisors is an integer number (9720656).

Almost surely, 2^51033423 is an apocalyptic number.

51033423 is a deficient number, since it is larger than the sum of its proper divisors (26731825).

51033423 is a wasteful number, since it uses less digits than its factorization.

51033423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430173.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 51033423 is about 7143.7681233366. The cubic root of 51033423 is about 370.9239702480.

Adding to 51033423 its reverse (32433015), we get a palindrome (83466438).

It can be divided in two parts, 510 and 33423, that added together give a palindrome (33933).

The spelling of 51033423 in words is "fifty-one million, thirty-three thousand, four hundred twenty-three".