51202856 has 8 divisors (see below), whose sum is σ = 96005370. Its totient is φ = 25601424.

The previous prime is 51202849. The next prime is 51202867. The reversal of 51202856 is 65820215.

It can be written as a sum of positive squares in only one way, i.e., 46648900 + 4553956 = 6830^2 + 2134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200171 + ... + 3200186.

Almost surely, 2^51202856 is an apocalyptic number.

It is an amenable number.

51202856 is a deficient number, since it is larger than the sum of its proper divisors (44802514).

51202856 is a wasteful number, since it uses less digits than its factorization.

51202856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6400363 (or 6400359 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 51202856 is about 7155.6170942833. The cubic root of 51202856 is about 371.3340109240.

The spelling of 51202856 in words is "fifty-one million, two hundred two thousand, eight hundred fifty-six".