51020022 has 8 divisors (see below), whose sum is σ = 102040056. Its totient is φ = 17006672.

The previous prime is 51019999. The next prime is 51020029. The reversal of 51020022 is 22002015.

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

51020022 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51020029) 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, 4251663 + ... + 4251674.

It is an arithmetic number, because the mean of its divisors is an integer number (12755007).

Almost surely, 2^51020022 is an apocalyptic number.

51020022 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.

51020022 is a wasteful number, since it uses less digits than its factorization.

51020022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8503342.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 51020022 is about 7142.8301113774. The cubic root of 51020022 is about 370.8915001073.

Adding to 51020022 its reverse (22002015), we get a palindrome (73022037).

The spelling of 51020022 in words is "fifty-one million, twenty thousand, twenty-two".