51404322 has 16 divisors (see below), whose sum is σ = 105587712. Its totient is φ = 16671600.

The previous prime is 51404321. The next prime is 51404351. The reversal of 51404322 is 22340415.

It is not an unprimeable number, because it can be changed into a prime (51404321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115554 + ... + 115997.

It is an arithmetic number, because the mean of its divisors is an integer number (6599232).

Almost surely, 2^51404322 is an apocalyptic number.

51404322 is an abundant number, since it is smaller than the sum of its proper divisors (54183390).

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

51404322 is a wasteful number, since it uses less digits than its factorization.

51404322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231593.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 51404322 is about 7169.6807460305. The cubic root of 51404322 is about 371.8203983294.

Adding to 51404322 its reverse (22340415), we get a palindrome (73744737).

The spelling of 51404322 in words is "fifty-one million, four hundred four thousand, three hundred twenty-two".