51304319 has 8 divisors (see below), whose sum is σ = 56263680. Its totient is φ = 46394200.

The previous prime is 51304291. The next prime is 51304333. The reversal of 51304319 is 91340315.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51304319 is a prime.

It is a super-2 number, since 2×51304319² = 5264266296107522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51304339) 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, 10109 + ... + 14310.

It is an arithmetic number, because the mean of its divisors is an integer number (7032960).

Almost surely, 2^51304319 is an apocalyptic number.

51304319 is a deficient number, since it is larger than the sum of its proper divisors (4959361).

51304319 is a wasteful number, since it uses less digits than its factorization.

51304319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24621.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 51304319 is about 7162.7033304472. The cubic root of 51304319 is about 371.5791261806.

It can be divided in two parts, 5130 and 4319, that added together give a palindrome (9449).

The spelling of 51304319 in words is "fifty-one million, three hundred four thousand, three hundred nineteen".