51422336 has 64 divisors (see below), whose sum is σ = 121176000. Its totient is φ = 21267456.

The previous prime is 51422333. The next prime is 51422351. The reversal of 51422336 is 63322415.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (51422333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24995 + ... + 26973.

It is an arithmetic number, because the mean of its divisors is an integer number (1893375).

Almost surely, 2^51422336 is an apocalyptic number.

51422336 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51422336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60588000).

51422336 is an abundant number, since it is smaller than the sum of its proper divisors (69753664).

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

51422336 is a wasteful number, since it uses less digits than its factorization.

51422336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029 (or 2017 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 51422336 is about 7170.9368983418. The cubic root of 51422336 is about 371.8638265221.

The spelling of 51422336 in words is "fifty-one million, four hundred twenty-two thousand, three hundred thirty-six".