51214317 has 16 divisors (see below), whose sum is σ = 85135872. Its totient is φ = 26604720.

The previous prime is 51214313. The next prime is 51214321. The reversal of 51214317 is 71341215.

It is an interprime number because it is at equal distance from previous prime (51214313) and next prime (51214321).

It is not a de Polignac number, because 51214317 - 2² = 51214313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51214313) 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 15 ways as a sum of consecutive naturals, for example, 110623 + ... + 111084.

It is an arithmetic number, because the mean of its divisors is an integer number (5320992).

Almost surely, 2^51214317 is an apocalyptic number.

It is an amenable number.

51214317 is a deficient number, since it is larger than the sum of its proper divisors (33921555).

51214317 is a wasteful number, since it uses less digits than its factorization.

51214317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221728.

The product of its digits is 840, while the sum is 24.

The square root of 51214317 is about 7156.4178888603. The cubic root of 51214317 is about 371.3617147277.

The spelling of 51214317 in words is "fifty-one million, two hundred fourteen thousand, three hundred seventeen".