51343424 has 28 divisors (see below), whose sum is σ = 111148368. Its totient is φ = 23337600.

The previous prime is 51343423. The next prime is 51343441. The reversal of 51343424 is 42434315.

It is a super-2 number, since 2×51343424² = 5272294376087552, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51343393 and 51343402.

It is not an unprimeable number, because it can be changed into a prime (51343423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35762 + ... + 37169.

Almost surely, 2^51343424 is an apocalyptic number.

It is an amenable number.

51343424 is an abundant number, since it is smaller than the sum of its proper divisors (59804944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51343424 is a wasteful number, since it uses less digits than its factorization.

51343424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72954 (or 72944 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 51343424 is about 7165.4325759161. The cubic root of 51343424 is about 371.6735101218.

Adding to 51343424 its reverse (42434315), we get a palindrome (93777739).

It can be divided in two parts, 5134 and 3424, that added together give a palindrome (8558).

The spelling of 51343424 in words is "fifty-one million, three hundred forty-three thousand, four hundred twenty-four".