51222332 has 24 divisors (see below), whose sum is σ = 102597600. Its totient is φ = 21919680.

The previous prime is 51222317. The next prime is 51222361. The reversal of 51222332 is 23322215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32294 + ... + 33842.

It is an arithmetic number, because the mean of its divisors is an integer number (4274900).

Almost surely, 2^51222332 is an apocalyptic number.

It is an amenable number.

51222332 is an abundant number, since it is smaller than the sum of its proper divisors (51375268).

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

51222332 is a wasteful number, since it uses less digits than its factorization.

51222332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2739 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 51222332 is about 7156.9778538151. The cubic root of 51222332 is about 371.3810863218.

Adding to 51222332 its reverse (23322215), we get a palindrome (74544547).

The spelling of 51222332 in words is "fifty-one million, two hundred twenty-two thousand, three hundred thirty-two".