51984873 has 6 divisors (see below), whose sum is σ = 75089274. Its totient is φ = 34656576.

The previous prime is 51984869. The next prime is 51984883. The reversal of 51984873 is 37848915.

It can be written as a sum of positive squares in only one way, i.e., 44515584 + 7469289 = 6672^2 + 2733^2 .

It is not a de Polignac number, because 51984873 - 2² = 51984869 is a prime.

It is a super-2 number, since 2×51984873² = 5404854041652258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51984883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2888040 + ... + 2888057.

It is an arithmetic number, because the mean of its divisors is an integer number (12514879).

Almost surely, 2^51984873 is an apocalyptic number.

It is an amenable number.

51984873 is a deficient number, since it is larger than the sum of its proper divisors (23104401).

51984873 is a wasteful number, since it uses less digits than its factorization.

51984873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5776103 (or 5776100 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 51984873 is about 7210.0536059034. The cubic root of 51984873 is about 373.2149187765.

The spelling of 51984873 in words is "fifty-one million, nine hundred eighty-four thousand, eight hundred seventy-three".