51671853 has 12 divisors (see below), whose sum is σ = 76373440. Its totient is φ = 33646536.

The previous prime is 51671839. The next prime is 51671911. The reversal of 51671853 is 35817615.

51671853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51671853 - 2⁵ = 51671821 is a prime.

It is a Duffinian 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 (51671153) 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 in 11 ways as a sum of consecutive naturals, for example, 66373 + ... + 67146.

Almost surely, 2^51671853 is an apocalyptic number.

It is an amenable number.

51671853 is a deficient number, since it is larger than the sum of its proper divisors (24701587).

51671853 is a wasteful number, since it uses less digits than its factorization.

51671853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133568 (or 133565 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 51671853 is about 7188.3136409035. The cubic root of 51671853 is about 372.4643222139.

The spelling of 51671853 in words is "fifty-one million, six hundred seventy-one thousand, eight hundred fifty-three".