51987883 has 2 divisors, whose sum is σ = 51987884. Its totient is φ = 51987882.

The previous prime is 51987847. The next prime is 51987907. The reversal of 51987883 is 38878915.

51987883 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51987883 - 2¹³ = 51979691 is a prime.

It is a super-3 number, since 3×51987883³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (51984883) 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 as a sum of consecutive naturals, namely, 25993941 + 25993942.

It is an arithmetic number, because the mean of its divisors is an integer number (25993942).

Almost surely, 2^51987883 is an apocalyptic number.

51987883 is a deficient number, since it is larger than the sum of its proper divisors (1).

51987883 is an equidigital number, since it uses as much as digits as its factorization.

51987883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 49.

The square root of 51987883 is about 7210.2623391940. The cubic root of 51987883 is about 373.2221218669. Note that the first 3 decimals are identical.

The spelling of 51987883 in words is "fifty-one million, nine hundred eighty-seven thousand, eight hundred eighty-three".