51304413 has 8 divisors (see below), whose sum is σ = 68826208. Its totient is φ = 33992784.

The previous prime is 51304399. The next prime is 51304423. The reversal of 51304413 is 31440315.

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

It is not a de Polignac number, because 51304413 - 2⁴ = 51304397 is a prime.

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 51304413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51304423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51970 + ... + 52947.

It is an arithmetic number, because the mean of its divisors is an integer number (8603276).

Almost surely, 2^51304413 is an apocalyptic number.

It is an amenable number.

51304413 is a deficient number, since it is larger than the sum of its proper divisors (17521795).

51304413 is a wasteful number, since it uses less digits than its factorization.

51304413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105083.

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

The square root of 51304413 is about 7162.7098922126. The cubic root of 51304413 is about 371.5793531168.

Adding to 51304413 its reverse (31440315), we get a palindrome (82744728).

The spelling of 51304413 in words is "fifty-one million, three hundred four thousand, four hundred thirteen".