51304617 has 96 divisors (see below), whose sum is σ = 100867200. Its totient is φ = 25474176.

The previous prime is 51304601. The next prime is 51304621. The reversal of 51304617 is 71640315.

51304617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51304617 - 2⁴ = 51304601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

51304617 is a modest number, since divided by 4617 gives 513 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51304637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 326703 + ... + 326859.

It is an arithmetic number, because the mean of its divisors is an integer number (1050700).

Almost surely, 2^51304617 is an apocalyptic number.

51304617 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

51304617 is a deficient number, since it is larger than the sum of its proper divisors (49562583).

51304617 is a wasteful number, since it uses less digits than its factorization.

51304617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 51304617 is about 7162.7241326188. The cubic root of 51304617 is about 371.5798456156.

The spelling of 51304617 in words is "fifty-one million, three hundred four thousand, six hundred seventeen".