51730424 has 8 divisors (see below), whose sum is σ = 96994560. Its totient is φ = 25865208.

The previous prime is 51730423. The next prime is 51730447. The reversal of 51730424 is 42403715.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 51730393 and 51730402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51730423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3233144 + ... + 3233159.

It is an arithmetic number, because the mean of its divisors is an integer number (12124320).

Almost surely, 2^51730424 is an apocalyptic number.

It is an amenable number.

51730424 is a deficient number, since it is larger than the sum of its proper divisors (45264136).

51730424 is a wasteful number, since it uses less digits than its factorization.

51730424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6466309 (or 6466305 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 51730424 is about 7192.3865302137. The cubic root of 51730424 is about 372.6050008035.

The spelling of 51730424 in words is "fifty-one million, seven hundred thirty thousand, four hundred twenty-four".