51443368 has 16 divisors (see below), whose sum is σ = 97452180. Its totient is φ = 25456128.

The previous prime is 51443323. The next prime is 51443369. The reversal of 51443368 is 86334415.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49533444 + 1909924 = 7038^2 + 1382^2 .

It is a super-2 number, since 2×51443368² = 5292840222366848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51443369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32371 + ... + 33922.

Almost surely, 2^51443368 is an apocalyptic number.

It is an amenable number.

51443368 is a deficient number, since it is larger than the sum of its proper divisors (46008812).

51443368 is a wasteful number, since it uses less digits than its factorization.

51443368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66396 (or 66392 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 51443368 is about 7172.4032234670. The cubic root of 51443368 is about 371.9145176845.

The spelling of 51443368 in words is "fifty-one million, four hundred forty-three thousand, three hundred sixty-eight".