51985083 has 24 divisors (see below), whose sum is σ = 76370688. Its totient is φ = 31390128.

The previous prime is 51985079. The next prime is 51985097. The reversal of 51985083 is 38058915.

It is not a de Polignac number, because 51985083 - 2² = 51985079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51985013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23866 + ... + 25952.

It is an arithmetic number, because the mean of its divisors is an integer number (3182112).

Almost surely, 2^51985083 is an apocalyptic number.

51985083 is a deficient number, since it is larger than the sum of its proper divisors (24385605).

51985083 is a wasteful number, since it uses less digits than its factorization.

51985083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151 (or 2132 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 51985083 is about 7210.0681688872. The cubic root of 51985083 is about 373.2154213267.

The spelling of 51985083 in words is "fifty-one million, nine hundred eighty-five thousand, eighty-three".