51851862 has 12 divisors (see below), whose sum is σ = 112345740. Its totient is φ = 17283948.

The previous prime is 51851803. The next prime is 51851869. The reversal of 51851862 is 26815815.

51851862 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51851869) 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 5 ways as a sum of consecutive naturals, for example, 1440312 + ... + 1440347.

It is an arithmetic number, because the mean of its divisors is an integer number (9362145).

Almost surely, 2^51851862 is an apocalyptic number.

51851862 is an abundant number, since it is smaller than the sum of its proper divisors (60493878).

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

51851862 is a wasteful number, since it uses less digits than its factorization.

51851862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880667 (or 2880664 counting only the distinct ones).

The product of its digits is 19200, while the sum is 36.

The square root of 51851862 is about 7200.8237028829. The cubic root of 51851862 is about 372.8963383542.

The spelling of 51851862 in words is "fifty-one million, eight hundred fifty-one thousand, eight hundred sixty-two".