51984086 has 32 divisors (see below), whose sum is σ = 100362240. Its totient is φ = 19598400.

The previous prime is 51984083. The next prime is 51984089. The reversal of 51984086 is 68048915.

It is an interprime number because it is at equal distance from previous prime (51984083) and next prime (51984089).

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51984083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671 + ... + 10218.

It is an arithmetic number, because the mean of its divisors is an integer number (3136320).

Almost surely, 2^51984086 is an apocalyptic number.

51984086 is a deficient number, since it is larger than the sum of its proper divisors (48378154).

51984086 is a wasteful number, since it uses less digits than its factorization.

51984086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10940.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 51984086 is about 7209.9990291261. Note that the first 3 decimals coincide. The cubic root of 51984086 is about 373.2130353977.

The spelling of 51984086 in words is "fifty-one million, nine hundred eighty-four thousand, eighty-six".