51002122 has 8 divisors (see below), whose sum is σ = 76824000. Its totient is φ = 25394124.

The previous prime is 51002113. The next prime is 51002123. The reversal of 51002122 is 22120015.

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

It is not an unprimeable number, because it can be changed into a prime (51002123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52872 + ... + 53827.

It is an arithmetic number, because the mean of its divisors is an integer number (9603000).

Almost surely, 2^51002122 is an apocalyptic number.

51002122 is a deficient number, since it is larger than the sum of its proper divisors (25821878).

51002122 is a wasteful number, since it uses less digits than its factorization.

51002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106940.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 51002122 is about 7141.5769967144. The cubic root of 51002122 is about 370.8481201808.

Adding to 51002122 its reverse (22120015), we get a palindrome (73122137).

The spelling of 51002122 in words is "fifty-one million, two thousand, one hundred twenty-two".