51317082 has 12 divisors (see below), whose sum is σ = 111187050. Its totient is φ = 17105688.

The previous prime is 51317069. The next prime is 51317083. The reversal of 51317082 is 28071315.

51317082 is a `hidden beast` number, since 513 + 1 + 70 + 82 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42263001 + 9054081 = 6501^2 + 3009^2 .

It is not an unprimeable number, because it can be changed into a prime (51317083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1425457 + ... + 1425492.

Almost surely, 2^51317082 is an apocalyptic number.

51317082 is an abundant number, since it is smaller than the sum of its proper divisors (59869968).

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

51317082 is a wasteful number, since it uses less digits than its factorization.

51317082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2850957 (or 2850954 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 51317082 is about 7163.5942096129. The cubic root of 51317082 is about 371.6099362649.

Adding to 51317082 its reverse (28071315), we get a palindrome (79388397).

The spelling of 51317082 in words is "fifty-one million, three hundred seventeen thousand, eighty-two".