51332226 has 16 divisors (see below), whose sum is σ = 111997728. Its totient is φ = 15555200.

The previous prime is 51332221. The next prime is 51332227. The reversal of 51332226 is 62223315.

It is a super-2 number, since 2×51332226² = 5269994852230152, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51332196 and 51332205.

It is not an unprimeable number, because it can be changed into a prime (51332221) 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, 388815 + ... + 388946.

It is an arithmetic number, because the mean of its divisors is an integer number (6999858).

Almost surely, 2^51332226 is an apocalyptic number.

51332226 is an abundant number, since it is smaller than the sum of its proper divisors (60665502).

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

51332226 is a wasteful number, since it uses less digits than its factorization.

51332226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777777.

The product of its digits is 2160, while the sum is 24.

The square root of 51332226 is about 7164.6511429378. The cubic root of 51332226 is about 371.6464874948.

The spelling of 51332226 in words is "fifty-one million, three hundred thirty-two thousand, two hundred twenty-six".