50851820 has 12 divisors (see below), whose sum is σ = 106788864. Its totient is φ = 20340720.

The previous prime is 50851799. The next prime is 50851883. The reversal of 50851820 is 2815805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271276 + ... + 1271315.

It is an arithmetic number, because the mean of its divisors is an integer number (8899072).

Almost surely, 2^50851820 is an apocalyptic number.

It is an amenable number.

50851820 is an abundant number, since it is smaller than the sum of its proper divisors (55937044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50851820 is a wasteful number, since it uses less digits than its factorization.

50851820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542600 (or 2542598 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 50851820 is about 7131.0462065534. The cubic root of 50851820 is about 370.4834683073.

The spelling of 50851820 in words is "fifty million, eight hundred fifty-one thousand, eight hundred twenty".