51682806 has 32 divisors (see below), whose sum is σ = 131258880. Its totient is φ = 14766408.

The previous prime is 51682801. The next prime is 51682823. The reversal of 51682806 is 60828615.

It is a happy number.

It is a super-2 number, since 2×51682806² = 5342224872067272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51682801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67986 + ... + 68741.

It is an arithmetic number, because the mean of its divisors is an integer number (4101840).

Almost surely, 2^51682806 is an apocalyptic number.

51682806 is an abundant number, since it is smaller than the sum of its proper divisors (79576074).

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

51682806 is a wasteful number, since it uses less digits than its factorization.

51682806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136745 (or 136739 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 51682806 is about 7189.0754621161. The cubic root of 51682806 is about 372.4906377239.

The spelling of 51682806 in words is "fifty-one million, six hundred eighty-two thousand, eight hundred six".