51808062 has 8 divisors (see below), whose sum is σ = 103616136. Its totient is φ = 17269352.

The previous prime is 51808039. The next prime is 51808063. The reversal of 51808062 is 26080815.

It is a sphenic number, since it is the product of 3 distinct primes.

51808062 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51808063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4317333 + ... + 4317344.

It is an arithmetic number, because the mean of its divisors is an integer number (12952017).

Almost surely, 2^51808062 is an apocalyptic number.

51808062 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51808062 is a wasteful number, since it uses less digits than its factorization.

51808062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8634682.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 51808062 is about 7197.7817416201. The cubic root of 51808062 is about 372.7913118420.

Adding to 51808062 its reverse (26080815), we get a palindrome (77888877).

The spelling of 51808062 in words is "fifty-one million, eight hundred eight thousand, sixty-two".