51344031 has 8 divisors (see below), whose sum is σ = 68575024. Its totient is φ = 34171200.

The previous prime is 51344017. The next prime is 51344053. The reversal of 51344031 is 13044315.

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

It is a de Polignac number, because none of the positive numbers 2^k-51344031 is a prime.

It is a super-2 number, since 2×51344031² = 5272419038657922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51343989 and 51344007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51344071) 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, 12436 + ... + 16041.

It is an arithmetic number, because the mean of its divisors is an integer number (8571878).

Almost surely, 2^51344031 is an apocalyptic number.

51344031 is a deficient number, since it is larger than the sum of its proper divisors (17230993).

51344031 is a wasteful number, since it uses less digits than its factorization.

51344031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29081.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 51344031 is about 7165.4749319218. The cubic root of 51344031 is about 371.6749748009.

Adding to 51344031 its reverse (13044315), we get a palindrome (64388346).

It can be divided in two parts, 513 and 44031, that added together give a palindrome (44544).

The spelling of 51344031 in words is "fifty-one million, three hundred forty-four thousand, thirty-one".