51685262 has 16 divisors (see below), whose sum is σ = 78744960. Its totient is φ = 25439352.

The previous prime is 51685261. The next prime is 51685267. The reversal of 51685262 is 26258615.

51685262 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 (51685261) 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 7 ways as a sum of consecutive naturals, for example, 83189 + ... + 83807.

It is an arithmetic number, because the mean of its divisors is an integer number (4921560).

Almost surely, 2^51685262 is an apocalyptic number.

51685262 is a deficient number, since it is larger than the sum of its proper divisors (27059698).

51685262 is a wasteful number, since it uses less digits than its factorization.

51685262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207.

The product of its digits is 28800, while the sum is 35.

The square root of 51685262 is about 7189.2462748191. The cubic root of 51685262 is about 372.4965379616.

The spelling of 51685262 in words is "fifty-one million, six hundred eighty-five thousand, two hundred sixty-two".