51821014 has 16 divisors (see below), whose sum is σ = 88932096. Its totient is φ = 22185000.

The previous prime is 51820991. The next prime is 51821017. The reversal of 51821014 is 41012815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51821017) 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, 19039 + ... + 21589.

It is an arithmetic number, because the mean of its divisors is an integer number (5558256).

Almost surely, 2^51821014 is an apocalyptic number.

51821014 is a deficient number, since it is larger than the sum of its proper divisors (37111082).

51821014 is a wasteful number, since it uses less digits than its factorization.

51821014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 51821014 is about 7198.6814070356. The cubic root of 51821014 is about 372.8223751590.

Adding to 51821014 its reverse (41012815), we get a palindrome (92833829).

The spelling of 51821014 in words is "fifty-one million, eight hundred twenty-one thousand, fourteen".